While playing the game "Alliance of Valiant Arms" my PTT key will not work and my mic will stay open for a short amount of time after I start the game.
Also the LCD mumble info freezes and will not update the LCD screen until the game closes.
I tried running mumble as admin.
I used the .msi 64bit installer for version 1.2.3
My PTT Key is "b"
The only anti virus I have is Microsoft Security Essentials, and I have the real time monitoring turned off.