Re: DELL E171FP White screen only.

I have a dell E177P1 that started giving intermittent white screens. I later observed that the problem occured in the day when its warmer but not at night. It have gotton progressively worst so that it always turn on with a white screen unless I put it in my freezer for about 20 minutes then remove it and connect it to my cmputer. then it works perectly until you turn it off. I have not checked on it yet but I will attemp a repair soon. What could be so temperature dependent?