When I fired up the New Xbox Experience tonight, the first thing I checked was whether Connect360 worked. I think I would probably use my Xbox for a coaster if I couldn’t play my DivX video on it via Connect360.
When I got into My Xbox>Video Library I was happy to see all my videos and music from my Mac were still there. Unfortunately, when I clicked on a video I got a message:
A media update is required to play this content. Status code: 51-C00DF236
After freaking out for a bit, I realized that the “Optional Media Update” from a few months ago wasn’t properly installed about the NXE installation. All I did was click the grayed-out “Download Now” option on that screen, select the update, and click “Download again”. After that, everything was working again.
Fwew! 
