I've scanned using Ad-Aware and Spybot and they haven't picked anything up. Here's my HijackThis log if anybody finds it useful.
Cheers in advance
Itchyfeet
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Logfile of HijackThis v1.97.7
Scan saved at 15:40:06, on 11/09/2004
Platform: Windows ME (Win9x 4.90.3000)
MSIE: Internet Explorer v5.50 (5.50.4134.0600)
Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCEVTMGR.EXE
C:\PROGRAM FILES\NORTON SYSTEMWORKS\NORTON UTILITIES\NPROTECT.EXE
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\RESTORE\STMGR.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\CCAPP.EXE
C:\WINDOWS\RunDLL.exe
C:\PROGRAM FILES\ZERO KNOWLEDGE\FREEDOM\FREEDOM.EXE
C:\PROGRAM FILES\MICROSOFT OFFICE\OFFICE\OUTLOOK.EXE
C:\WINDOWS\SYSTEM\PSTORES.EXE
C:\PROGRAM FILES\MOZILLA FIREFOX\FIREFOX.EXE
C:\PROGRAM FILES\EDONKEY2000\EDONKEY2000.EXE
C:\WINDOWS\MSAGENT\AGENTSVR.EXE
C:\PROGRAM FILES\COMMON FILES\REAL\UPDATE_OB\REALSCHED.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\PROGRAM FILES\COMMON FILES\SYMANTEC SHARED\NMAIN.EXE
C:\ANTI-SPYWARE\HIJACKTHIS.EXE
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.google.co.uk/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = unix.nildram.co.uk:1030
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O2 - BHO: (no name) - {64FBDB7A-72D7-4E8A-9268-D0F8490E3851} - (no file)
O2 - BHO: (no name) - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Freedom BHO - {56071E0D-C61B-11D3-B41C-00E02927A304} - C:\PROGRAM FILES\ZERO KNOWLEDGE\FREEDOM\FREEBHOR.DLL
O2 - BHO: (no name) - {C7D3285C-D9F0-4098-AB7C-D0C41BBDE4C9} - (no file)
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton SystemWorks\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [PCHealth] C:\WINDOWS\PCHealth\Support\PCHSchd.exe -s
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [Password Check] c:\windows\GrabCookie.exe
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [ccRegVfy] "C:\Program Files\Common Files\Symantec Shared\ccRegVfy.exe"
O4 - HKLM\..\Run: [NPROTECT] C:\Program Files\Norton SystemWorks\Norton Utilities\nprotect.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [*StateMgr] C:\WINDOWS\System\Restore\StateMgr.exe
O4 - HKLM\..\RunServices: [ccEvtMgr] "C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe"
O4 - HKLM\..\RunServices: [ScriptBlocking] "C:\Program Files\Common Files\Symantec Shared\Script Blocking\SBServ.exe" -reg
O4 - HKLM\..\RunServices: [NPROTECT] C:\Program Files\Norton SystemWorks\Norton Utilities\nprotect.exe
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKCU\..\Run: [Taskbar Display Controls] RunDLL deskcp16.dll,QUICKRES_RUNDLLENTRY
O4 - HKCU\..\Run: [Zero Knowledge Freedom] C:\Program Files\Zero Knowledge\Freedom\Freedom.exe
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsearch.html
O8 - Extra context menu item: Cached Snapshot of Page - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmcache.html
O8 - Extra context menu item: Similar Pages - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsimilar.html
O8 - Extra context menu item: Backward Links - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmbacklinks.html
O8 - Extra context menu item: Translate into English - res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmtrans.html
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: MSN Messenger Service (HKLM)
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupd...8206.2994907407
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macr...ash/swflash.cab