Problem:
      Automatic yranging doesn't set the ylog switch in 
the panel for scratch_pad_mvc.  This is demonstrated by
plotting Qx in the scratch pad for 19960529.  The switch by
default is log.  Autoranging selects a negative yrange(0),
and ylog=0.  This is not communicated to the panel editor,
even though yscl(panel,3) is set properly by ytick_parm.
The problem therefore appears to be in papco.  This investigation
left off near line 1010 of papco_draw in P9, where papco's
logic for transferring yscl to Aplotinfo seems to fail.  

2/4/99 jbf.
