erm im not shure alotho i have taken the flopy drive out and the side of the case of to get as much cool air in as possible.
If a friend of yours has an extra video card you can borrow for awhile, try swapping it out with yours and seeing if it still does that.
i do still have my old card i will try it out later on.
I have a Auxillary fan in my case, which kicks in when the internal temprature get too high. It seems to help.
just thinking would having duel screens afect any thing???
No, it wouldn't cause any problems.
ah think i know what the problemis the power supliy