Fedora Connector Images

We're testing the Fedora Connector plugin. The server is connected, the PIDs are correct and the data streams populate, but the images are not displaying, leaving only the dreaded blue box with a question mark in its place.

Others have seemed to have this problem:

http://omeka.org/forums/topic/image-datastreams-from-fedora#post-25269

http://omeka.org/forums/topic/fedoraconnector-doesnt-show-images#post-104434

Any suggestions?