Haven't yet heard from anyone, but here's an update. The computer went from bad to worse, with the mouse operating by itself, programs opening or closing by themselves, the computer typing gibberish by itself, opening the start menu and typing gibberish into the 'start search' line - - and WMC opening almost constantly until the computer is practically useless - - and of course, just out of warranty.
So, out of total desperation, I nuked the drive with KillDisk (Dban wouldn't run), did a clean install of Vista yesterday - - and today, the same problems are back. All I have installed are the drivers and AVG, Ccleaner, and SuperAntiSpyware. Vista hasn't even finished updating itself yet.
Have already spent about $200.00 trying to get this fixed and just can't afford anything else and am totally stumped. Can anyone HELP!?