Any ideas on my problem? Got an XP Pro tower that freezes after the system is left along for more than 30 minutes. I'll be working on it just fine then leave it alone until the screen saver comes on (set to triger at 30 min), will do save screen for a few and then freeze, mouse or keyboard will not bring it out of this freeze. Have to do a cold boot all over. No error messages on Event Viewer of any kind. Any ideas? Have ran checkit SE 7.0 and all hardware is running fine. Zero viruses as well. I'm lost.