Well this is the PC Wizard reportPC Wizard 2008 Version 1.852------------------------------------------------------------------------------------------Owner: MicrosoftOrganisation: MicrosoftUser: JaneOperating System: Windows (TM) Vista Ultimate Professional 6.00.6001 Service Pack 1Report Date: Monday 13 July 2009 at 22:50------------------------------------------------------------------------------------------> > Mainboard : Asus M3A32-MVP DELUXE > Chipset : AMD RD790 > Processor : AMD Phenom X4 9850 @ 2500 MHz > Physical Memory : 4096 MB (2 x 2048 DDR2-SDRAM ) > Video Card : ATI Radeon HD 4800 Series > Hard Disk : SAMSUNG (1000 GB) > DVD-Rom Drive : Optiarc DVD RW AD-7201S ATA Device > Network Card : Marvell Semiconductor (Was: Galileo Technology Ltd) Yukon 88E8056 PCI-E Gigabit Ethernet Controller > Operating System : Windows (TM) Vista Ultimate Professional 6.00.6001 Service Pack 1 > DirectX : Version 10.00 > Windows Performance Index : 5.9------------------------------------------------------------------------------------------***** End of report *****But I don't have an ERRLOG.txt in my Witcher\System folder.I run as Administrator in any case. My crashes are not merely to desktop, but crashes that reboot the PC. I should add that my system has been checked over in the last week by the guy who built it and nothing was found to be wrong with it.