Sorry for split topics, but I am also having mouse troubles. I just bought a G5 Logitech Laser Mouse and I can't get it to work. It is USB and when I plug it in it sometimes says can't install. And the lights on it have never worked. I don't really know what to try and do about it? I am on Windows XP and I have a ASUS A8n-SLI deluxe motherboard.