I've had my computer for a few years now and about 1 year in it's present configuration. I was working quite happily a couple of nights ago when all of a sudden the keyboard and mouse stopped working. I assumed the PC had crashed so powered off and on again. On boot up I got the BIOS error: "Keyboard error or no keyboard present" and I couldn't get past it. I have a wireless USB Logitech keyboard and mouse which have worked for the life of the PC. I've changed the batteries and the USB socket all to no avail. I unplugged all the other USB devices and that didn't help either. Last night I went out and bought a new wired keyboard and mouse and I'm still getting the error! Any ideas?