[KLUG Members] ps2pdf (ghostscript) errors

[Adam Williams]

I'm trying to publish a new version of my LDAP presentation.  So I print 
it to a file (Postscript Level 1, 8 bit color, US Letter, 300dpi) with the 
same settings I've always used.  A postscript file is created.  Attempting 
to view it with GGv dies and ps2pdf/ps2pdf12/ps2pdf13) all fail with the 
error below.  Curious if any postscript gurus have any guesses what this 
might be and how I can diddle to get it working again.

lnx01688:~ $ps2pdf13 output.ps 
Error: /undefined in 0.5:
Operand stack:
   0.15686   0
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   
--nostringval--   2   %stopped_push   --nostringval--   --nostringval--   
--nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   3   
%oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   .runexec2   
--nostringval--   --nostringval--   --nostringval--   2   %stopped_push   
--nostringval--   --nostringval--   --nostringval--
Dictionary stack:
   --dict:1030/1476(ro)(G)--   --dict:0/20(G)--   --dict:92/200(L)--
Current allocation mode is local
Current file position is 12701
GNU Ghostscript 6.51: Unrecoverable error, exit code 1

P.S. I have tried converting the file on three seperate machines (RH70, 
71, and 72) and they all do the same thing.