Issues with Windows' Volume Mixer

AlexHertz said:

Hey guys! I'm having some small problems with Windows Sound Mixer!
It happens when I'm playing Left 4 Dead. Every time that I win a level, the Sound Mixer lowers the volume of the game. If I'm listening to music in WMP or WMC, it pauses the music and lowers its volume too.
One weird thing, is that the volume the application were keeps marked on the Mixer, but faded, and a other volume marker, not faded, goes down! Then, I've to lower the game, raise the volume levels again, then go back.
In WMP, happens almost the same, but there is none faded volume marker, it just lowers the volume, but the marker stays in the same position!
I know, its kinda creepy, when I play again, I'll post a screenshot here for you guys to see.

I got all my Realtek drivers updated to lastest version, and I'm using Windows 7 x86 build 7100.

Any help will be appretiated!
Thanks guys, cheers! Ah, sorry if I made any English errors, its not my mother language =p

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AlexHertz said:

Hey, thanks for the reply! =]

Here we go:
Processor: Intel Core 2 Quad Q6600
MB: MS-7366, chipset GeForce 7050
RAM: 2Gb DDR2, i don't know the manufacturer =s
Audio HW: Its onboard... I don't know if I can find any precise info about it

Ah, by the way, I got another issue, I forgot mentioning. When I play, I speak with my friends with the Mumble VoIP program. Always when I start Mumble, WMP pauses de music too.

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Consequences said:

You may want to check the Communications tab. It could be the culprit.

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