Yea.. but where does that heat go when the heat when the back is down???? seriously... several people have done this over on the MapTool forum, so trust me on this.... of course, it may also be the difference between a larger LCD TV monitor vs a smaller plain computer monitor.... but typically, people have put a spacer of about 1/2 inch or so to keep the plexi above as well as some fans to move the air around(like say.. computer cooling fans)