Problem with Gallery Shortcode

I just switched from MP Lite to the full version of Marketpress, and when I activated the Pro version it somehow triggered a change to all the galleries throughout my site so that none of them displayed. I could see that their settings were the same but when I went to the pages where they were supposed to display, they completely vanished.

Immediately I deactivated MP Pro and switched back to Lite, and thankfully everything reverted to how it looked originally which tells me that something in the Pro version caused a problem with my galleries.

How would I fix this problem so that I can use MP Pro and still have the pages with galleries showing up properly?