Hi there,
Please do this;
Download 'Hijack This!'.
Here
Save it to a convenient
permanent folder like this
C:\HJT\HijackThis.exe, double click HijackThis.exe, and hit "Scan".
When the scan is finished, the
"Scan" button will change into a
"Save Log" button.
Press that, save the log, Ctrl-A to Select All, and copy its contents here.
Most of what it lists will be harmless or even essential, don't fix anything yet.