The PathPilot installation sets the resolution to a fixed value (I think 1024x768) and then the screen has to deal.
I'm using a 16:9 screen, and the PathPilot interface is stretched a bit -- round toolpaths looks slightly oval (stretched sideways) because of this.
I would expect the 5:4 aspect ratio (1280x1024) to also be stretched, unless there's some secret magic I don't know about to change the aspect/resolution.
From early on in pathpilotmanager.py:
Code:
if mgr.set_monitor_resolution(1024, 768) is True:
# we just changed monitor resolution
# we have to restart pathpilotmanager.py so that GTK gets the proper monitor
# resolution so its screen centering math is correct.
sys.exit(const.EXITCODE_RESOLUTIONCHANGE)