I'm sorry if this has been addressed but I have search the net as well as the forum with nothing as similar a problem to mines. Anyways, just recently I have begun to have some rather strange boot problems with my PC. Sometimes my PC would start up but nothing would display on the screen, yes this is a very common thing but when I turn off the PC and turn it on again it would then be normal. At times I would have to turn off the PSU and wait a couple of seconds to turn it back on in order for it to display on my screen. This also happens when I put my PC in stand by mode for 10 minutes or longer (I'm not sure if it works less, just a guess). Everything inside my PC works (i.e. CPU fan, vidcard fan, nb fan, etc.) a strange thing, maybe not is that when I turn off my PC all the fans will continue to stay on, I'm not sure if this is normal or not. The most recent thing I added was a 500W PSU - XCLIO brand (about 2 months ago, problem started about 2 weeks ago) that was recommended by general consensus for my motherboard (LanParty Nforce 4 Ultra-D) from the now defunct DFI-Street forum. I just wanted to know what is the problem? I thank you for your time and I am sorry again if this is a double post or anything of that nature.