text replaced with "u uuuu" in printed version

[Graham Percival]

2.7.36 created on OSX 10.3.9; printed on win2000 machine with Adobe 
Acrobat.

If I print a .36-created pdf file normally, all text is mangled.  The 
title is a series of "u u uuu uuuuu" characters; the meter, composer, 
and tagline fields are "y yyy yy" (even the numbers are replaced by 
yyy, but the -- line remains as a line), and chord names are replaced 
by "mm".

I printed pdfs created with lily 2.6.x successfully on this machine.  
This isn't my own machine, so it's possible that something else has 
changed on it (new version of acrobat, new printer drivers, whatever) 
since those days.

I could print successfully if I chose the "print as image" option.  
These files looked perfect on the screen, even in Acrobat.  Only the 
printed version was messed up.

Any thoughts?  (this was a one-day thing; I no longer have access to 
the system.  But this will probably affect other people, especially 
once we release 2.8.0)
- Graham