Ok..this was fine up until today...i had no problems since my last post until tonight. watching a film, bam, bsod, no file or message, just bsod. rebooted, finsihed film, loaded up COD4, got in game, 20 secs, bam, gone again, this time kmixer.sys rebooted, then rebooted again to be on safe side. loaded COD4 again...same, bam, bsod, this time with BAD_POOL_CALLER How random can u get? goign to run memtest again, but that never picked sommit up before, so doubt it will this time. onyl other option will be to delete my raid, rebuild it, and re-install?