This is an issue that I've been having with my computer since I built it 2 summers ago. Basically the monitor won't receive any signal when my room is warm, particularly during the summer months. This also means if I've been running my computer for a while and then shut it off, or even just restart it, it won't turn on again initially. This only happens when I turn my computer on. Once it's on, I don't have any issues. The only way I really know to fix this problem is to leave it off for a while and blast the air conditioning till I can restart it without any problems. Otherwise, I just have to leave my computer on all the time. My motherboard is an EVGA P55 series and my graphics card is an MSI N460GTX. Way back when this issue first happened, I tried using another graphics card and still had the same result, so I would assume the issue is not with the graphics card. Has anyone encountered this problem before or know what the underlying problem could be? Any help would be great and I can try to provide more information if needed.