Can't produce PDF from FM 9 + Acr 9 on Windows 7

[Emmy A.]

Windows 7 Enterprise Version 6.1, FM 9.0p255, Acrobat Pro Extended 9.3.3 (all patches installed)

Single FM file of 20 pages, produces PDF on XP machine but not on Windows 7. When choosing "Save as PDF" Frame goes to "Not Responding." Same result with trying to save to postscript (but that's as it should be since Save as PDF is shortcut). Using "Standard" setting in Distiller, no customized joboptions.

I must be missing something, but what?

Emmy