...download Hijack This and run it and copy and paste your log file here. ...If you can provided that I'll take a look at it and see if we can get you resolved.
HijackThis is next to useless these days.
We prefer people to follow the steps in the link posted by crunchie earlier - they give us a much more thorough look at the computer.
Here are the 'rules and regulations' for the forum:
-- Any knowledgeable and thorough assistance you wish to provide is welcome here as long as the "standard operating procedure" linked above is followed.
Cheers :)
PP