Hi Bernd,

At the very least, line 37 should also be retained:

http://www.projectpluto.com/mar_fmt.htm#37

This stores the frame height, width, and tilt angle. The
height and width are recomputed when you go through the CCD dialog.
But they _aren't_ recomputed when line 80 of a .MAR is loaded;
Guide assumes that it will get the correct data from line 37.
(You should still have line 80 in there.)

-- Bill