If you're really stuck you could try this and let the rest of us see what we can see.

If you don't already have HijackThis, Download HijackThis from http://www.spywareinfo.com/downloads...HijackThis.exe and create a log.

Run the program, and press Scan.
You will notice the Scan button will turn into a "Save Log" button.
Save the log and Post that log here.

DO NOT Delete or modify anything yet, as some of it is needed to keep your system in Good Shape.