[Scribus] Scribus hangs for 40 mins, then disappears

[ols6000 at sbcglobal.net]

I am trying to edit an existing Scribus document, using 1.3.3.9cvs 
under Fedora Core 6. I start Scribus, select the document from the 
recent list, there is disk activity for 42 minutes, then the Scribus 
pgm disappears. The document never appears on the screen, only the % 
done indicator, which goes immediately to 94%, and the "wait" cursor.

I believe this document has been successfully opened before and has 
not been changed, though I am not positive of that.

Any idea what could cause Scribus to stop execution, or why it takes 
so long to do so?