Hmm, because the file is minified, I can't tell what line is failing. Replace the minified version with the debug version:
1. On the web server, go to DesktopModules\GalleryServerPro\gs\script in your DNN site.
2. Rename mediaobjectview.js to mediaobjectview_tmp.js
3. Rename mediaobjectview.debug.js to mediaobjectview.js.
4. Use a browser to trigger the error again, noting the stack trace (callstack). Post it here.
When finished, reverse the steps to go back to your original script file.
Also, which version of jQuery is your browser using? With Firebug, view the jQuery script file - the version number is in the first line or two.
Roger Martin
Creator and Lead Developer of Gallery Server Pro