**urgent** Usb Not Working
last night my usb keyboard stopped working all of a sudden. i didn't know what was going on so i restarted my computer. now my mouse didn't work. this morning, none of my usb ports work. i'm using a usb-to-ps/2 adpter so my mouse will work, and i'm using windows' on-screen keyboard to type this. whenever i plug something like my mouse into a usb port, the red light for the sensor fickers for a little bit and then goes dead. i re-installed my motherboard drivers, but that didnt change anything.
HELP! THIS IS URGENT!!!