Please download >RogueKiller<:
Save it to your Desktop.
Now, close all open programs.
For Vista/Windows 7, right click the file and select: Run as Administrator
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.