this is all mighty good stuff and makes me think there is something wrong with the power supply or the CPU or the cooling system. If you guys are rendering all night with no false stops then I or my computer is doing something wrong, and if the laptop is rendering for 20 hours no problem then I would say it is the PC and not me. (it could be though).

how do you turn off Maya and batch render at the same time (this could be an answer but if it stopped how would i know, i mean a false stop) , I'll lend you an ear, what's the secret there?

Hows the laptop Gster, what did you finally get.

yea, it was my graphics card and it does ardware render with a breeze and no false stops.