Hello. I just got the Philips Hopper SV20 LC4236 Impact projector. It is really great except I cant seem to get any of the keys to work on the remote or the projector. I was told by the person I bought it from that the keys were locked, and they couldnt get them unlocked. I did what the instruction manual suggested to unlock the keys (turn off the projector by the main power cords), but it still didnt seem to unlock the keys. Can anybody help me figure out how to unlock the keys again? Thank you.