First, thanks to all who take time out of their busy lives to help out folks like me!
My computer will hang several times an hour and I have considered a failing drive (as the drive light is always full on during the hang), a bad drive controller, a bad graphics card, a bad power supply and so on. It still may well be one or more of those, but I did notice an entry in my task list that is always there when this happens, and when I stop it, the computer immediately unfreezes. Plus, anything that I am working on continues as if nothing happend, so it doesn't seem to be connected to anything I am running. Here is the task as listed in Task Manager:
rundll.exe C:\windows\system32\inetclp.cpl, ClearMyTracksByProcess Flags:25035 WinX:759 WinY:307 IEFrame:000602C2
It has the feel of something graphics related and yet virus related. Any ideas would be greatly appreciated.
Windows 7 Ultimate 32bit
Intel Q6600 Quad Core CPU
2GB DDR2 PC800 RAM
Nvidia GeForce 8800 GXT (latest drivers from Nvidia)
ASUS Maximus Formula (SE) (latest BIOS from ASUS)