I have a user that has her computer lockup almost everyday. This is a new pc with a core I7 processor and 8GB of ram so it doesn't seem like a resource issue. This happens at random keyboard and mouse lock up completely and a couple minutes after it happens a message pops up "a usb device has malfunctioned". I have plugged all USB devices (just keyboard and mouse) into other usb ports with no results. There are not any of the typical (not responding messages or any of the typical stuff). It's running windows 7.