another thought: Could this be related to the change in the MC that set bscale and bzero, recently? c. APO APO APO APO APO Apache Point Observatory 3.5m APO APO APO APO APO This is message 54 in the apo35-dis archive. You can find APO the archive on http://www.astro.princeton.edu/APO/apo35-dis/INDEX.html APO To join/leave the list, send mail to apo35-request@astro.princeton.edu APO To post a message, mail it to apo35-dis@astro.princeton.edu APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO APO