Out of nowhere the snap on keyboard lost all functionality.  I first noticed it when the cursor disappeared.  I saw a video on youtube where I guy with similar problems took off the back of the keyboard and reconnected all the connections and that took care of it so that is what I did.  

This seemed to take care of everything except one strange thing.  If the keyboard battery is connected the cursor is gone.  As soon as I pull the plug the cursor is back.  All other functions work fine either way.  Can anyone give me some help on this one?  thanks