Your help would be appreciated. For the past three weeks I have found that when I first start up my PC in Windows XP Pro normally and get to the desktop the screen will go a complete blank (or sometimes it will show coloured stripes) seemingly when I click on a button or try to open a window. The computer locks up, I power down, it starts up ok on restart, then the same happens. After about the third or fourth startup things seems to settle down and the rest of the day is ok. Coincidentally I cannot get Windows to start up in Safe Mode - gets halfway and then reboots. I have done most things the experts would recommend ;-) checked out the current adapter software, repaired Windows, updated all files both Office XP and Windows XP (this all happened before SP2 so I can't blame that). I'm wondering if I have a hardware problem although I am trying the software side first. My Shuttle has a built in Video Adapter.