I read about these issues all the time on various computer related forums and I was wondering if this was common at all. In my experience, with a proper reformat, prebuilt pcs are extremely stable. I've been using a Dell for a year and never had to restart it nor have it ever bsod on me. When I push the power button, it turns on. I've never had any "memory error" messages. I've never had anything go wrong with them. Are custom built pcs as reliable?