Give this a try...
Please download RogueKiller
Save it to your Desktop.
Now, close all open programs.
For XP, simply double-click RogueKiller.exe
When prompted, type 1 and hit Enter.
An RKreport.txt should appear on your Desktop.
Note: If the program is blocked, do not hesitate to try several times. If it really does not work (it could happen), rename it to >winlogon.exe<
>Please post the contents of the RKreport.txt in your reply.<