ON BOTH MY DRIVES I SUDDENLY HAVE THE LITTLE YELLOW "!" MARKS AND THE WIN XP PC DOES NOT RECOGNIZE I HAVE THESE. I AM TRYING TO INSTALL A PRINTER, BUT i CANNOT USE THE DRIVES. I DONT KNOW WHAT TO DO. I HAVE NOT DELETED ANY PROGRAM OR FILES, IT IS A NEW PC, BUT SUDDENLY I CAN'T USE THE DRIVES. PLEASE HELP. I AM GETTING ANGRY. THANKS FOR HELP IN ADVANCE.