Today something weird has happened. Just suddenly the remote for our MySky HDi box stopped working... kind of. It's weird because the light on the remote and decoder light up when a button is pressed and some of the buttons (the sky button, channel buttons, volume, planner) work but the rest don't (ff, rw, record, play, stop, pause, the arrows, select and the number buttons). Also the buttons on the decoder are not working.

Has this happened to anyone else before?  Any ideas on how to fix it.