Malware & viruses can be a real headache. Sometimes it takes more than one program to detect and clean a sick pc.
My suggestions are:
SuperAntiSpyware:
http://www.superantispyware.com/
Malwarebytes:
http://www.malwarebytes.org/
Microsoft Safety Scanner:
http://www.microsoft.com/security/sc...s/default.aspx
Avast Virus Protection:
http://www.avast.com/en-us/index
These are all free. Just follow the instructions.
Last, but not least, is HijackThis. It is pretty advanced stuff so be careful! Just google HijackThis for links.
Good luck sailors