I ran into a strange problem with the remote for my Panasonic PT51HX41 TV. I was in the service menu doing the 64 point convergence when the up/down(channel) buttons and the power button gave up on me. The rest of the buttons on the remote seem fine, I can change the volume and the input, for example, but the power and the channel up/down keys don't do anything. I have a Pronto remote in which I have a CCF file from another Panasonic model that I'm trying to modify for this TV, and I can turn it on and off and change channels with that, so I think it is not a problem with the TV. However, I cannot use that remote for the service menu. The TV is only about 2 weeks old. Has anyone experienced anything like this? Thanks for your suggestions.