I have a thinkpad 760c that I am turning into a digital picture frame. It is running lxpic under dos 5.0. The problem I have is after a certain amount of time the laptop screen goes blank and you have to touch a key to make it come back. I believe it is some kind of strandby or hibernation mode but i cannot find any way to stop it in the bios. Is this a dos thing and how to I stop it?