I knew better, but I went through with the Gamevance.exe install anyway...and of course, now I have pop-ups, a stupidly slow computer, and spotty internet access.

I found another thread that suggested I download MBAM and run a quick scan, which just finished and I've pasted the results below. Now, I just need to know what to do next.

MBAM Quick Scan log:

Malwarebytes' Anti-Malware 1.41
Database version: 2845
Windows 5.1.2600 Service Pack 3

9/22/2009 9:25:10 PM
mbam-log-2009-09-22 (21-25-10).txt

Scan type: Quick Scan
Objects scanned: 119183
Time elapsed: 49 minute(s), 41 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 1
Registry Keys Infected: 13
Registry Values Infected: 2
Registry Data Items Infected: 3
Folders Infected: 1
Files Infected: 7

Memory Processes Infected:
C:\Program Files\Gamevance\gamevance32.exe (Adware.Gamevance) -> Unloaded process successfully.

Memory Modules Infected:
C:\Program Files\Gamevance\gamevancelib32.dll (Adware.Gamevance) -> Delete on reboot.

Registry Keys Infected:
HKEY_CLASSES_ROOT\minibugtransporter.minibugtransporterx (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\TypeLib\{3c2d2a1e-031f-4397-9614-87c932a848e0} (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{04a38f6b-006f-4247-ba4c-02a139d5531c} (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{2b96d5cc-c5b5-49a5-a69d-cc0a30f9028c} (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\minibugtransporter.minibugtransporterx.1 (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{0ed403e8-470a-4a8a-85a4-d7688cfe39a3} (Adware.Gamevance) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0ed403e8-470a-4a8a-85a4-d7688cfe39a3} (Adware.Gamevance) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{beac7dc8-e106-4c6a-931e-5a42e7362883} (Adware.Gamevance) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{beac7dc8-e106-4c6a-931e-5a42e7362883} (Adware.Gamevance) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\gamevance (Adware.Gamevance) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\gvtl (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\FunWebProducts (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\MyWebSearch (Adware.MyWebSearch) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDLLs\C:\Program Files\Common Files\Real\WeatherBug\MiniBugTransporter.dll (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gamevance (Adware.Gamevance) -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\UpdatesDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
C:\Program Files\Gamevance (Adware.Gamevance) -> Delete on reboot.

Files Infected:
C:\Program Files\Common Files\Real\WeatherBug\MiniBugTransporter.dll (Adware.Minibug) -> Quarantined and deleted successfully.
C:\Program Files\Gamevance\gamevancelib32.dll (Adware.Gamevance) -> Delete on reboot.
C:\Program Files\Gamevance\ars.cfg (Adware.Gamevance) -> Quarantined and deleted successfully.
C:\Program Files\Gamevance\gamevance32.exe (Adware.Gamevance) -> Quarantined and deleted successfully.
C:\Program Files\Gamevance\gvtl.dll (Adware.Gamevance) -> Quarantined and deleted successfully.
C:\Program Files\Gamevance\gvun.exe (Adware.Gamevance) -> Quarantined and deleted successfully.
C:\Program Files\Gamevance\icon.ico (Adware.Gamevance) -> Quarantined and deleted successfully.

Okay - here is the HijackThis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 9:39:29 PM, on 9/22/2009
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP3 (6.00.2900.5512)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Adobe\Adobe Acrobat 7.0\Distillr\Acrotray.exe
C:\WINDOWS\system32\CTHELPER.EXE
C:\WINDOWS\MXOALDR.EXE
C:\WINDOWS\system32\SK9910DM.EXE
C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\Program Files\NetRatingsNetSight\NetSight\NielsenOnline.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\Program Files\NetRatingsNetSight\NetSight\NielsenOnline.exe
C:\Program Files\QuickTime\QTTask.exe
C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\SYSTEM32\astsrv.exe
C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\MacOpener\MacName.exe
C:\Program Files\Common Files\Logishrd\KHAL2\KHALMNPR.EXE
C:\QUICKENW\QWDLLS.EXE
C:\Program Files\Bonjour\mDNSResponder.exe
C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
C:\Program Files\MacOpener\FORMATM.EXE
C:\Program Files\Common Files\Sonic Shared\CineTray.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Documents and Settings\Tamar Wallace\Application Data\Dropbox\bin\dropbox.exe
C:\Program Files\Norton AntiVirus\Engine\16.7.2.11\ccSvcHst.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\Program Files\Viewpoint\Common\ViewpointService.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Norton AntiVirus\Engine\16.7.2.11\ccSvcHst.exe
C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Symantec\LiveUpdate\AUpdate.exe
C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.tamargraphics.com/welcome.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.tamargraphics.com
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = *.local
N3 - Netscape 7: user_pref("browser.startup.homepage", "www.tamargraphics.com/welcome.html"); (C:\Documents and Settings\TAMAR WALLACE\Application Data\Mozilla\Profiles\default\mifw5emd.slt\prefs.js)
N3 - Netscape 7: user_pref("browser.search.defaultengine", "engine://C%3A%5CProgram%20Files%5CNetscape%5CNetscape%5Csearchplugins%5CSBWeb_01.src"); (C:\Documents and Settings\TAMAR WALLACE\Application Data\Mozilla\Profiles\default\mifw5emd.slt\prefs.js)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Adobe Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Symantec Intrusion Prevention - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\Program Files\Norton AntiVirus\Engine\16.7.2.11\IPSBHO.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_07\bin\ssv.dll
O2 - BHO: Adobe PDF Conversion Toolbar Helper - {AE7CD045-E861-484f-8273-0445EE161910} - C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll
O4 - HKLM\..\Run: [Adobe Version Cue CS2] "C:\Program Files\Adobe\Adobe Version Cue CS2\ControlPanel\VersionCueCS2Tray.exe"
O4 - HKLM\..\Run: [Acrobat Assistant 7.0] "C:\Program Files\Adobe\Adobe Acrobat 7.0\Distillr\Acrotray.exe"
O4 - HKLM\..\Run: [WINDVDPatch] CTHELPER.EXE
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\UpdReg.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE NvQTwk,NvCplDaemon initialize
O4 - HKLM\..\Run: [MXO Auto Loader] C:\WINDOWS\MXOALDR.EXE
O4 - HKLM\..\Run: [MacLicense] "C:\Program Files\MacOpener\MacLic.exe"
O4 - HKLM\..\Run: [Jet Detection] C:\Program Files\Creative\SBAudigy\PROGRAM\ADGJDet.exe
O4 - HKLM\..\Run: [Hot Key Kbd 9910 Daemon] SK9910DM.EXE
O4 - HKLM\..\Run: [googletalk] C:\Program Files\Google\Google Talk\googletalk.exe /autostart
O4 - HKLM\..\Run: [Symantec PIF AlertEng] "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe" /a /m "C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\AlertEng.dll"
O4 - HKLM\..\Run: [Logitech Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [Kernel and Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [NielsenOnline] C:\Program Files\NetRatingsNetSight\NetSight\NielsenOnline.exe
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime
O4 - HKLM\..\Run: [Malwarebytes Anti-Malware (reboot)] "C:\Program Files\Malwarebytes' Anti-Malware\mbam.exe" /runcleanupscript
O4 - HKCU\..\Run: [SpySweeper] C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe /0
O4 - HKCU\..\Run: [emoze] C:\PROGRA~1\emoze\emoze.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: Dropbox.lnk = C:\Documents and Settings\Tamar Wallace\Application Data\Dropbox\bin\dropbox.exe
O4 - Global Startup: Adobe Acrobat Speed Launcher.lnk = ?
O4 - Global Startup: Adobe Gamma.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Billminder.lnk = C:\QUICKENW\BILLMIND.EXE
O4 - Global Startup: Install Pending Files.LNK = C:\Program Files\SIFXINST\SIFXINST.EXE
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O4 - Global Startup: MacName.lnk = C:\Program Files\MacOpener\MacName.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: Quicken Startup.lnk = C:\QUICKENW\QWDLLS.EXE
O4 - Global Startup: Register Genuine Fractals 6.0 Professional Edition.lnk = C:\Program Files\onOne Software\Genuine Fractals 6.0 Professional Edition\Register Genuine Fractals 6.0 Professional Edition.exe
O4 - Global Startup: Sonic CinePlayer Quick Launch.lnk = C:\Program Files\Common Files\Sonic Shared\CineTray.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: Convert link target to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert link target to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert selected links to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECaptureSelLinks.html
O8 - Extra context menu item: Convert selected links to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppendSelLinks.html
O8 - Extra context menu item: Convert selection to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert selection to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O8 - Extra context menu item: Convert to Adobe PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIECapture.html
O8 - Extra context menu item: Convert to existing PDF - res://C:\Program Files\Adobe\Adobe Acrobat 7.0\Acrobat\AcroIEFavClient.dll/AcroIEAppend.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: PartyPoker.net - {F4430FE8-2638-42e5-B849-800749B94EED} - C:\Program Files\PartyGaming.Net\PartyPokerNet\RunPF.exe (file missing)
O9 - Extra 'Tools' menuitem: PartyPoker.net - {F4430FE8-2638-42e5-B849-800749B94EED} - C:\Program Files\PartyGaming.Net\PartyPokerNet\RunPF.exe (file missing)
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O15 - Trusted Zone: http://www.pearlevision.com
O16 - DPF: {2B323CD9-50E3-11D3-9466-00A0C9700498} - http://jcs.chat.dcn.yahoo.com/v45/yacscom.cab
O16 - DPF: {D8AA889B-2C65-47C3-8C16-3DCD4EF76A47} - http://online.invokesolutions.com/events/b...1437/MILive.cab
O16 - DPF: {E06E2E99-0AA1-11D4-ABA6-0060082AA75C} (GpcContainer Class) - https://howwebinars.webex.com/client/T26L/t...ing/ieatgpc.cab
O18 - Protocol: skype4com - {FFC8B962-9B40-4DFF-9458-1830C7DD7F5D} - C:\PROGRA~1\COMMON~1\Skype\SKYPE4~1.DLL
O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Adobe Version Cue CS2 - Adobe Systems Incorporated - C:\Program Files\Adobe\Adobe Version Cue CS2\bin\VersionCueCS2.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: AST Service (astcc) - Nalpeiron Ltd. - C:\WINDOWS\SYSTEM32\astsrv.exe
O23 - Service: Automatic LiveUpdate Scheduler - Symantec Corporation - C:\Program Files\Symantec\LiveUpdate\ALUSchedulerSvc.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: GoToMyPC - Citrix Online, a division of Citrix Systems, Inc. - C:\Program Files\Citrix\GoToMyPC\g2svc.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Logitech Bluetooth Service (LBTServ) - Logitech, Inc. - C:\Program Files\Common Files\Logitech\Bluetooth\LBTServ.exe
O23 - Service: LiveUpdate - Symantec Corporation - C:\PROGRA~1\Symantec\LIVEUP~1\LUCOMS~1.EXE
O23 - Service: LiveUpdate Notice Service - Symantec Corporation - C:\Program Files\Common Files\Symantec Shared\PIF\{B8E1DD85-8582-4c61-B58F-2F227FCA9A08}\PIFSvc.exe
O23 - Service: MacFormatService - DataViz Inc. - C:\Program Files\MacOpener\FORMATM.EXE
O23 - Service: Norton AntiVirus - Symantec Corporation - C:\Program Files\Norton AntiVirus\Engine\16.7.2.11\ccSvcHst.exe
O23 - Service: NVIDIA Driver Helper Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: PictureTaker - LANovation - C:\WINDOWS\System32\PCTKRNT.SYS
O23 - Service: Symantec Core LC - Unknown owner - C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
O23 - Service: Viewpoint Manager Service - Viewpoint Corporation - C:\Program Files\Viewpoint\Common\ViewpointService.exe

--
End of file - 11758 bytes

After running the anti-malware program and hijack this, I did another anti-malware scan, and no infections were found. I think I may have taken care of it. At least I hope so!