My experience is different from yours
Your commnet;
"In Windowed mode - as you run FSX - if I task switch from FSX to any Windows program: FSCommander, EFB, Notepad, Firefox, etc., I cannot hear any FSX sound. When I switch/click back to FSX, the FSX sound returns. (Even if I click on a button in the FSC GPS window that appears within the FSX window, the FSX sound goes away only to return when I click back in the FSX cockpit.) "
When I run firefox , fs-commander or notepad I do not loose the fsx sound, I do however loose the fsx sound with this program. I never lose sound with any undocked fsx gauge even if it is on another screen
I use three screens on two cards. I am using a rampage 2 extreme MB with a built in sb-xfi card.
Ok well we have different experiences, I can run everything without losing sound but this program so ill have to run it on my second computer with widefs, No big deal , I just dont understand why it wont behave typical to my other programs
Pete