From one X'EYE owner to another, those switches have been known to go bad after a while. I had the same problem with mine and (while I cannot seem to locate the link discussing the matter), there exists a permanent fix for it. Essentially, you short out the switch so the X'EYE thinks the door is always closed; the downside is that you'll have to load a disc before powering on the system, and opening the door will not kill the motor which spins the disc.

Sucks, but, it's worked so far for me.