I feel your pain vic. I just had to wipe out everything on my pc about a month ago. I got lazy when it came to scanning my pc and updating it. My pc was running way to slow to the point where i wanted to take my DF to it.
Now i got AVG installed and use Ad-aware. I also stopped using IE and switched to Firefox3 That has helped alot. Also when i surf the net i also run a program called " SpywareBlaster " that has worked wonders.
If your pc starts acting up again vic check out this place:
http://forums.maddoktor2.com/index.phpAll you do is scan your pc with a program called " Hijack This " and copy and past the log on this forum. Then someone will post instrutions on how to get rid of any bad crap. Make sure you read the " Read before posting " thread so you know what to do.
That place has saved me a bunch of times and its free. Backing up all your stuff tho is the best bet.