We'll probably have to narrow it down so this may take several trips into msconfig and several reboots.
First, I would like to see what's in your device manager to see if it shows anything wrong with any devices:
Right-Click on the My Computer Icon
Open the Hardware tab
Select Device Manager
Go up to View
Select Show Hidden Devices
Navigate Down the list and expand (click the + sign) next to each thing, do anything of them have a funky symbol next to them (like a little yellow triangle with an exclamation point, etc.)
If any of them do, will you take a screen shot of it so I can see what it is:
You can take a screen shot by holding CTRL and press the prt scr button. Then go to Start > All Programs > Accessories > Paint. In Paint, go up to "Edit > Paste", go up to "File > Save As", then change the "Save As Type" to "JPEG" and save it to the desktop. In your next post after clicking "Add Reply" click the browse button and navigate to the screenshot on your desktop and click "add this attachment".
Let me know!