Hi, I have a Panasonic TH-42PWD5 plasma hooked upto my NTL box with a RGB to Plasma VGA converter (JS Tech). The problem is the screen size appears to be locked in zoom mode. I have tried changing the NTL output to different options e.g. letterbox, but this doesn't make any difference to the picture. Unfortunately I do not have the remote control for the screen. Is anyone able to advise how I can resolve this issue to view the picture in widescreen etc? Thanks in advance...