Running a Dell E310, Windows XP, 160 G hard drive, external 500 G My Book, Xp partition is 117 G of 160, only 55% full.
When running Chuzzle, Ma Jong, mmorpg's, email, basically anything every 10 - 30 minutes it freezes/won't respond to mouse or keyboard input, won't update screen, just nothing for about 2 - 5 seconds; then goes back to normal. Task manager shows (sometimes) 95-100% cpu use, doesn't however keep a record of what was using so much cpu, then drops back to 2-10% cpu use.
Running AVG, Spybot Search and Destroy, WinPatrol and Ad Aware so don't "think" its spyware or virus/worm etc.
Any suggestions to procede in finding the cause?