check the power on your usb ports. it maybe that you have stessed 1 or more of them if you used an external hdd b4 using the mouse.
Thanks....I only used an external hard drive on one the 6 USB ports available to me a couple of times. My system is pretty new, it was only built in June with new parts all round.... The mouse problem would happen on any of the usb ports i tried.
How would I go about checking the power on the usb ports to see if they have been stressed? Would something in the BIOS help me there? thanks.