I've done numerous full scans with Symmantec Antivirus, Spyware Search and Destroy, and Ad-Aware, so I don't think its a virus.
The computer is 4 years old and so is the current installation of windows.
I guess what I'm asking is: Is this just a matter of buying some more ram? Or is it a software issue?
Currently I have 512 megs of ram in the machine right now.