I've recently installed Windows Vista Ultimate (final) and everything's working fine except that after some time, when windows is completely started up, a bluescreen appears and windows restarts. After restarting I get this error message: STOP 0x000000EA THREAD_STUCK_IN_DEVICE_DRIVER (Q293078) I looked up the KBID on msdn, but nothing helped me any further. Is anyone experiencing this problem too? It seems to have something to do with my hardware acceleration, but I can't find when I can decrease it (I can't do it in Control Panel) ------------------ System Information ------------------ System Manufacturer: NVIDIA System Model: AWRDACPI BIOS: )Phoenix - Award WorkstationBIOS v6.00PG Processor: AMD Sempron Processor 3000+, ~1.0GHz Memory: 1022MB RAM Page File: 233MB used, 2067MB available Windows Dir: C:\Windows DirectX Version: DirectX 10 I have a RADEON 9550, and installed ATI Catalyst Control Center, which should contain the correct drivers for my video card. Any help is welcome! ==> See the attachment for my complete DxDiag Logfile DxDiag.txt