My carputer of over 3 years is now doing something weird. I have the m10000 MB with 512mb ram. It starts fine in the mornings. When I get back into my car within a few hours of using my car, the pc won't post. I just get black screen on the lilliput. No post, no text, nothing. I have checked the ram, hdd, ide cable, unpluged everything except the monitor...still won't post. I have searched but havn't found anything like that...any ideas? Heat related?