Xbox 360 MKV files missing upgraded to lastest version

Tversity asked me to update my 1.9 version to the latest. I said what the heck and did.
the install went well everthing seems to be running the software found my library.

When i boot up the 360 any files with MKV or MP4 do not show up in the folder they are saved.

What do i need to do so the xbox and see and play these files.
Step by step guide someplace would be great.

Are you using the free version? You need Pro to play MKV on Xbox 360. MP4 should work with free version too as long as they do not have surround sound.

yes the free one.
so i just should go back to version 1.9