Anyone else have problems getting their HK remotes to learn codes? Just wondering as I've had no luck. I got my 320 from Fry's, who are infamous for reselling returned goods as new. I noticed my box had been opened, but only today did I figure out why. Looks like they swapped remotes with my box, as nothing was disturbed except for a ripped bag for the remote (and a missing Duracell). Do these remotes come with a plastic protective cover like the receiver (over the rcvr display)? Might be the final clue to confirm my suspicion. Thanks for any help.