Do what i did, Use a pair of tweezers to get it to slide in all the way, then throw a dot of hot glue on it to keep it in place. Then don't take it apart again
Or find a way to work around it
Also about the power shutting off, Sounds more like you have a short somewhere. Take it from the king of shorts to the LCD cage :P
A few things to check.
-If you soldered anything start there.
-If you did any of the speaker mods. I know that was a problem for me, the damn wire insulation would split for some odd reason and ground out on the LCD cage.
If any of these are the problem move your wiring or use some insulating tape.