A Gateway Essentials computer only has USB ports, no PS/2 for Keyboard or mouse. The Bios has been reset so when I turn on the computer on it gives the message and asks to press F9 to continue or F1 to to setup. But the Keys do not work. I know there should be a setting in the bios to tell it to recognize USB keyboards but I can't get intot he bois to set this. I have a PS/2 keyboard that I can use but the computer does not have PS/2 ports, only USB. Any ideas on how to get this computer working again?