noteheads gone when printing - font wrong

[Damian leGassick]

this is weird

it was working fine just the other day - it's as if acrobat/preview  
loses the lily fonts at printing.

i've cleaned the system and application font-caches (with linotype  
font explorer)

what's odd is that even embedded in omnigraffle or pages, i get no  
music printed.

it all looks fine on-screen, it's just the printing

any ideas?

tia

Damian