The message, basically, is "File Error: Unable to play the file. Reboot your computer or restart Media Center"

I can see all the folders with the pictures, music, and video in them, all the thumbnails available and everything shows up and plays fine on the PC in both WMP11 and Media Center.

On the 360 via Media Center, pictures and music both work fine and I can see the thumbnails for all the videos. This tells me (admittedly assuming here...) that the codes are working fine. However, NO videos work. Not even mpeg1/2 or wmv. Though divx is my main concern I'd like to get anything I can working.

The 360 and pc both hardwired to a common router, both have the latest updates.