I dunno whats wrong, but I no longer see anything on the screen of my MD player. Its a NF610, and I've had it for a while, however, I havent used it much. It was working perfectly earlier today, up until I sat down at my computer, and I heard music playing. I thought it was just me, since the screen on my MD player was off, however, I finally realized this. The music still plays, and nothing looks amiss. What could be wrong?