My computer has been infected with some sort of virus (trojan I'm guessing) that blocks me from accessing google.com, and a couple other google related sites. It does not redirect me to any different sites but instead just says that it can not display the page. It does the same thing in every browser I've tried. The only other weird thing is that it reset my homepage to mystart.com search engine. I run AVG free 2012 and when the virus infected the computer AVG caught it and supposedly cleaned it but it's still doing the same thing. I've run a bunch of different malware, spyware, & virus scans without any luck and I've tried searching all over the internet for solutions but have yet to find one. Attached is the AVG Virus Vault screenshot which shows the ones that it has found. Any help to get rid of this would be greatly appreciated. Thanks!!