Neither my Mozilla Firefox nor my Internet Explorer works anymore. They load their homepage (Google), but then won't work when I search through Google. The page just doesn't show up and no error messages appear either. Other applications still update and connect to the internet. I ran spybot S&D and that made it work for a while, but then after I rebooted it no longer works. I ran it again numerous times and it hasn't fixed the problem since. I have also run AVG Antivirus, Adaware, and SuperAntiSpyware, none of which have worked.

I tried to restore to before I had the problem, but none of the restore points work and now I get messages from AVG claiming that they are infected. Any help would be appreciated.

Check for malware:

http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Overview