Well I am not sure what happen, nor can I find anyway to correct it. I was using my pc just fine last night before I went to bed. (My pc stays on 24/7) I got up this morning when to check my email and noticed that my USB wireless mouse was not working (it was pluged into the onboard usb 1.1 port) so I unplug it and plug it in to my USB 2.0 card and it works fine, so I re-try it in the onboard usb port, no dice. So I plug it back into the 2.0 card and move on to my email. I go to write a reply and realise that my keyboard is not working either. WTF! So I restart my pc thinking Glich, so after I restart, check the keyboard, and still nothing and my mouse still will not work in the on-board usb slot. I try a different keyboard, nothing, I move my keyboard to a different computer, and it works fine. So I go into the device manager and remove the keyboard and the driver, restart so it will automatically find the keyboard, nothing, no beeps saying there is no keyboard, nothing, and it did not find the keyboard. So I try to manually install the keyboard, and as soon as I do, it opens the device troubleshooting guide. WTF!! And I can't install drivers for it either! Even manually selecting the driver doesn't work! I have no idea what could have possibley happen in the 8hrs I slept that would cause this. In desperation I when out and bought a Logitech USB keyboard and plugged that into my USB2.0 card and it works just fine, But I still have no idea why the PS/2 keyboard won't work. Now is it just me or do you think something happened to my mobo? Is there anything else that anyone can think of that can fix this? Could this be a delayed result from when my PSU blew up? Any ideas at all?