I just installed a new set of Depos w/HID. As I was adjusting the driver's side light, the back low beam cover popped off. I went to pop it back on and it wouldn't stay. I looked a little closer and noticed that the little clips/pins that hold the cover on totally broke off.

Could I have done something wrong to make this happen? All I was doing was adjusting the light with the adjusting screw. :help

you may have turned the adjuster too far. The plate where the cover is attatched to is connected to a screw that moves it back and forth, so maybe you pushed it too far and the cover decided to pop out? Just glue it back on, with some epoxy or something.
I did the same thing, but the plate that holds my projector lens just broke in half :(