I've got a weird problem. I've got a comptuer that will boot up, but will accept no input from the mouse/keyboard. Also when it POSTs, the num lock, scroll lock and caps lock lights will blink for about 10 seconds, then it will continue to boot up. Then the mouse and keyboard will not work once it tries to go into windoze. I was going to format this machine, but when it hits WinXP setup, it locks. I have used a ps/2 and a USB keyboard, both of which have the same problems. When i have the keyboard and mouse hooked up on it, it posts, then locks after the memory check. Hopefully someone here will have a better idea of what it could be, b/c im about to strip it down and start fresh.