I have this problem since my Windows 7 has an Update about a few days. I have a laptop Asus SNM, with Realtek High Definition Audio. When I am playing something like WOW, or Second Life, I cant hear anything else, not mp3, not youtube, nothing. When
I close the game, then the other sounds can go out.
I Hope anyone can help me, sorry about my english. Thx
The first thing I would do is uninstall your sound driver and then reinstall it. See if that does not fix the issue. If not, then check to see that you have the latest update.