[Scribus] HELP!! Scribus 1.3 "can't write the PDF file"

[Robert R. Di Giorgio]

I have September's issue done, 825.5 KB, all fonts embedded, preflight 
verifier says "No problems found", but when I click on Save in the PDF 
window, I get an immediate message from Scribus that it "cannot write 
the file".  The hourglass continues to turn, so I gave it time to see if 
it was writing the file anyway, but it didn't finish in an hour and I 
gave up.

I checked to make sure there wasn't another file of the same name in the 
folder. I made sure all the fonts that are in the document were 
embedded, I have plenty of memory and hard drive space.

How can I get this file to print to PDF? I'm up against a deadline.

Thanks.