Issues with external player TMT5 and audio after playing

Hello

I use TMT5 as external player. I configured XBMC to automatically mount an iso file and start playback with TMT5.
I click on a movie (*.iso as defined in playercorefactory ) which schould trigger the external player. But before the external player starts XBMC shows me a menue
to choose which playlist i want to play or show bluray menue. After i click one item (no matter which item) the external player starts.
I dont't need the menue in XBMC. It's fine if i want to play the iso with the internal DVDPLAYER. But if i choose to play with the external player XBMC should start
the external player immediately.
I tried with Frodo RC2 and the latest nightly build. Is this a feature or a bug? How can i disable these behavior?

After i watched the movie in TMT5 i close TMT5 and XBMC is back in fullscreen but audio is not working. I guess TMT5 took the audio device.
I need to go to the settings and switch audiodevices back and forth to get XBMC to work. After that i can use XBMC with e.g. an mkv.
I tried direct sound and wasapi in XBMC with the same result no audio after TMT5 playback.

Any idea to solve this two issues?