I've been having a problem with my usb keyboard. Recently its been shutting off on each one of my usb ports, as in i cant use them again for the keyboard, and i have no idea why. I called dell, and theyre telling me to system backup and reformat, which i dont tihnk will work. Ive used up all of my usb ports so now im using my old usb keyboard right now. anyone know how to fix this? thanks