IT geek as well First dealings with VISTA Every indication and error string pointed to the ram having a bad write back -- LIke Bent had offered my only real worry was not having recovery disk to restore from as this was on an other partition. After removing the ram I still needed to restore to factory defaults as the video driver took a hit --- I think the person haad dropped the laptop in the woods while downloading video from his digital camera (for hunting) but didnt want to tell his parents nor his grandfather whom haad bought it --- all is well now