|Have a look in the BIOS. There may be a setting for USB in there. Tapping F2 or Delete when the computer first boots should get you into the BIOS. Look in all the options for USB Support and enable it, save changes and restart. Word of warning, don't change anything you're not sure of.|
It could possibly be a fault on the mother board, but lets hope not!
Computers... designed to entertain,help with work but most of all to frustrate you!