Helldiver, it is not the aircraft.cfg file that needs checking, it is panel.cfg file found in the Panel folder, if you make a copy of the panel.cfg file you will have a back up.
This can happen on a lot of planes if SIZE_Y is to small so you will have to check the panel.cfg in the panel folder of all problem planes.
Which aircraft are you having problems with ?
[Default View]
X=0
Y=0
SIZE_X=8191
SIZE_Y=6143