Problems with "Save as function"

[Ariel Kahana]

Hi there,
 
I have been working on an FM document for over year. I am using FM 7.2 and
Acrobat 7.0 distiller to create PDFs. 
 
As of this morning I am unable to produce PDFs using the "Save as PDF"
option. 

I get the following error message:

%%[ ProductName: Distiller ]%%
%%[ Error: undefined; OffendingCommand: pdfmark; ErrorInfo: StRetrieve
P279585 ]%%
 
Stack:
/StRetrieve
/P279585
/StoreName
-dict-
 

%%[ Flushing: rest of job (to end-of-file) will be ignored ]%%
%%[ Warning: PostScript error. No PDF file produced. ] %%
 
At the same time I cannot use Distiller to produce a .ps file from a PDF
 
Fortunately I can still produce PDFs (lower quality though) when printing to
PrimoPDF. 
 
Any suggestion or tips?
 
 
Ariel 
(Feeling like a complete schmuck)