Obviously, from my screen name, you can figure out that I don't know that much. First, I have a Compaq Pressario S5200nx store bought computer. I have done some upgrades (Added memory to 1024, which is at max, added fans, 128mb video card). I have recently had some problems with a couple of my USB ports, and with all my research and problem solving techniques, I have come to the solution that the motherboard must be messed up. So, my question is, how do I change the motherboard (if I can)? Will I need to change the processor, too? Any help would be useful. I'm not totally stupid, but act like you're talking to a 4 year old!