Same problem for me. When choose a menu option that takes me to a submenu, the background music hiccups. My background music is in WMA format, created by the WMA converter that comes with the Windows Media Player bonus pack... They have played fine (no stuttering) in the previous builds, so I think something new has came up
Other than that, no problems thusfar. I am sticking with this new build just for the fact that the blue screen is gone. I can live with the audio issue in the meantime! Thanks for the update