Sometimes the onboard computer goes out of whack. Try turning off the power switch on the back of the player and also disconnect the power cord. Leave off for a few minutes and then reconnect power cord and turn on and try again.This will sometimes work. If it does not work the first time, try repeating a couple of more times. It is of course also possible that the laser has burned out or that there is another problem with the transport. I have had the same problem and doing what I have told you might just work. The tech at Theta had suggested this to me when I was having the same problem. Good luck.
