Hi just posting my experience with 4.06 B1 at my show tonight.
There were a couple of problems
The audio stuttering problem is still present but less frequent
Three times during my show tonight the audio slowed down and stuttered.
This occured while I was either searching for a song or adding an audio file to the playlist while a karaoke or audio song was already playing.
Twice during the night I had the window pop up saying hoster has stopped working and the application will be closed at which point I had to restart Hoster but lost my playlist content and had to re-enter it
Also a couple of times when a singer had picked the wrong version of a song that they wanted to sing I proceded to hit stop and add the correct version but when hitting the stop button the button went from red to greyed out and the song kept playing and the only way to stop it was to close and re-open Hoster
One very good thing was that the lyrics stayed in sync the entire night!!!!!!!!:
I had informed all of the singers at the beginning of the night that I was using a beta version and they gave me there full support and ask me to let all of the staff at MTU know that they appreciate all of the hard work they are doing to solve these problems with Vista