Gah! I've run my virus scanner (Norton) as well as avast!, and I've run Microsoft AntiSpyware. No dice! I've searched the Symantec website for the symptoms of this virus, to no avail.
A few months ago, all of a sudden I couldn't access Google.com with Firefox. IE still worked, though. However, I could still get to Gmail with FF. Then a couple of days later, I couldn't get to Gmail either, nor any other email server. A couple more days later, my hardware volume control stopped working. Now I knew that it was my computer, so I rolled it back a few weeks to before the problem started.
Now today, it's happening again. I can't get to Google in Firefox, yet I can in IE. Also, a few days ago, Norton appeared to have failed, and told me to reinstall it. Surprisingly, though, I can still run the program. The virus probably just screwed around with it, rendering it useless.
I have no intention of formatting my hard drive unless it's the only thing I can do to save my computer.
What is there left for me to do?