Diamons

I know this isn't exactly a Maxima specific issue but thought best ask to here versus anywhere else.

I have a viper alarm on a 1995 Nissan Maxima. I have a remote http://www.remotestartexperts.com/im...nt-remotes.jpg (top row, #4)

I used it to lock my car, went to the store, came back and it wouldn't work. The light blinks red when I press the buttons but nothing happens. I even tried the re-programming procedure and I got the little chirps indicating it was re-programmed but I still can't use the remote anymore.

Any advice?