sounds like w32.pinfi to me, clear your hosts file of everything apart from the help information and local host (and the ip), and you should be able to access the sites that you want, this worked for me. Then download avg antivirus, and run that, deleting all instances pretty much, then re-download all of the drivers that you need, its a lot of hastle, but theres no way of healing it, it drives itself into the *.exe's and you can't do anything about it other than delete it...
