Partial web interface on CMM Micro

We are running into a strange problem. If we try accessing one of our CMM Micros (CANOPY CMM 2.2 Build 2) from behind our firewall/router (Cisco ASA 5520) then we only get the side menu and a place holder for the top image. If we access it from anywhere else it works fine. The CMM Micro is operating properly. Anyone have any suggestions/ideas of where to begin troubleshooting?

Thanks in advance.

You may want to check the logs on the ASA 5200 to see if it prohibiting the content.
Also may want to see if there is some way of white listing the IP.