my first hard drive is set up to dual boot vista ultimate and xp pro. my second internal drive cannot be read while under vista, i tried to format the drive in vista but it wouldn't format (froze) and then i tried to format in xp which went fine, but i still cannot read/write to it in vista. i also tried reading from a friend's external hard drive under vista and i still get an i/o error. is there something obvious i am missing? why can't i read/write to other drives within vista?