[dushappeaps]

There was a good thread about these programs a few weeks back which turned out to be a godsend, because my computer started to get really slow when it was connected to the Internet. I installed CCleaner (I was running Microsoft Security Essentials and Malwarebytes already) and ran the Cleaner and Registry tools, and it seemed to fix whatever was causing the problem (I hope!). Now I run all three programs religiously, as I wasn't doing that before.