Ok.. here's the deal: Intel Celeron 2.66Ghz 1024Mb DDR400 memory Windows XP pro Onboard video/lan/sound Mobo: ASRock P4S61 Allways worked perfectly.. Then the rebooting and systemcrashes started.. I re-installed it completely.. Windows updates and servicepacks installed, latest drivers installed (except for the videodrivers because i couldn't find them) and the problem seemed to be fixed. Or not.. When I found and installed the video drivers the system kept coming with rebooting and crashing at random order at that moment I decided to turn off the auto-restart option on system crash and got the Blue Screens 'O Death. These told me I had problems with: DRIVER_IRQL_NOT_LESS_OR_EQUAL IRQL_NOT_LESS_OR_EQUAL PAGE_FAULT_IN_NONPAGED_AREA I de-installed the video drivers in safe mode and thought it would be fixed, but it wasn't. Still the system crashes and bluescreens. Then I decided to test the internal memory with mem-test. When i ran it, it said Loading......... and when it was done loading the system restarted (me never seeing the mem-test). Could someone please point me in the right direction, cause i'm getting ready to throw this computer out the window!