My Windows XP Professional will not load in any mode, I have tried safe mode, with command prompt, etc. No options will load the operating system, and I do not see a single driver load at all. All I get when I hit any option is a black screen and nothing happens. This was a fresh install of Win XP Pro, and there was nothing wrong with the machine when I got it home. ( I just bought it today ) I tried to install an SMC brand USB wireless G adaptor, and when it asked to restart, I hit ok, then it kept restarting over and over again, until finally, nothing happens at all unless I hit F8 and then no mode will give me anything but a black screen. Could this possibly have anything to do with overheating? I think it may be possible that during transport, one of the loose cables inside may have got caught in the fan that cools the cpu. Not sure though. I took it apart and saw this could have happened, so I made sure the wires were all neatly put away, then tried to restart it, same thing happens. What can I do?! Please help!