First off let me say that, after distro-hopping for a while, I have found, in my opinion, the best Linux distribution ever in Linux mint. As a hobbyist programmer, I can definitely say it is not easy to make great software. So hats off to the developers!
Now on to the question: see the title. I am running Linux mint Debian Edition (x64) and have USB headphones. For the life of me, I cannot change the default sound device to this headset. It detects correctly (shows up in "Volume Control") and I can output to the device via VLC (requires changing the settings in that application). However, I would like to change this device to default audio output device globally. I am using MATE desktop with Compiz Window Manager (Desktop Cube! ). I apologize if I am missing something obvious, but I have searched to no avail for quite some time. Thanks for your help!