Vista - Volume Mixer (Control)

Hey, it's me again

Magically, I had no problems with vista until yesterday. I ran an game (.exe), and the sound was surprisingly low. I have In-game sound set to 60%, but it wasnt near as low as it was. I was running Mumble in background (TS/Ventrilo style program) and i could hear people just fine as it should be. Weird indeed, but i wasnt really bothered... Today I ran another game (.exe), and it was too low too. So I checked settings in-game, everything was okay. Then I went to volume mixer and saw it changed the exe. to 6%. Why should it do that, I dont know...

Any clues of what might cause this?

EDIT: Ive had the "Allow applications to take exlusive control of this device" turned on, that was the reason. But hey, there is the solution if anybody else has this problem.

EDIT2: There still is some issues :S