This probably won't work (but worth a try). I can't test it first as I run 3 wide screen monitors, but you may try re-sizing your panels the way you want them, then save the panel state. This worked on another 3rd Party addon, but i can't remember which one.

A good idea. I'll give this a try. I must say, in both the MD-11, and now the NGX, I fly nearly entirely from the VC, but there are times I like to use the 2D, especially when trying to fly a challenging instrument approach - looking down at an angle at the instruments results in annoying artifacts in the lines, due to the way it is drawing on the screen (not PMDG's fault) and I find it distracting. I do have a wide-screen panel, but its vertical resolution is poor compared to my 4:3 aspect and I lose valuable vertical visibility. I'm saving for a 2560x1600 widescreen panel. :D Best regards,Robin.

Some work on panel.cfg file would solve the problem possibly, but I think it is better for PMDG to create a solution. That way we may not broke something else while trying to fix our 4:3 panels. I'm having the same problem.