App Crash Exporting Images to PDF

[digix]

For some reason now the app is crashing on me when I try to export my log to Dropbox and select:

Include Photos = Yes
PDF
2x2/page
Small
Black & White

This worked two weeks ago - can't see why it won't now. The app just hangs for about 60 seconds then crashes. If I deselect PDF for the photos (or use JPEG) it works fine. BTW the log name does not have any slashes, spaces, or special characters.

iPhone4 Verizon
iOS v 5.1.1 (9B206)
BizXpensTracker v7.02
Dropbox v1.5.1

Fix?

[Silverware]

Sign out of Dropbox from the Prefs screen and sign back in to re-establish your permissions to your account.

-Scott