I tried looking at it. The cylinder gear was stuck and with a little Q-Tip with WD-40, it moved again. I had it working again, but after playing the 4-in-1, the same problem occured again. I don't know why, but that disc causes the problem. It's like the laser goes all the way back and then gets stuck and then I have to do the same procedure ALL over again! With Q-Tips, I cleaned the gears with alcohol, then applied WD-40 with the Q-tips(since I don't have that red thing, I sprayed it on the Q-Tip). Same situation. I'm stuck in a rut.