I have 4 USB ports all used,I'm using 98SE,the keyboard i am using is not a USB, I cannot find one.The computer is a 2001 but I've had it rebooted and repaired from Gateway a few times.I don't know about the Grafic Card or the Onboard Plug ins.It doesn't happen too too often so there isn't time to wiggle the cable. I just hi backspace bring it back and keep typing. until it does it again which usually doesn't for a while or days later
Thank You for your help