I'm not exactly new to this site. Couple years ago I had an issue with a rootkit causing IE to open an window to a specific site, even if I wasn't websurfing (or using IE, for that matter).
It all worked out OK with the help from the nice folk the Security forum.
Problem is, I have no idea what nick I used, or e-mail address, so I had to re-register. Hope you don't mind.