I like to play along to bands albums with my guitar through a UX2 while simultaneously listening to them on Itunes. I've noticed though, that If i don't have my UX2 settings just right (in terms of lowering the volume of the amps) the UX2 loudness will cause the ITUNES to completely stop. Actually, every other application that makes sound stops working. For instance when I get on ableton to play my guitar through a UX2 over a simple drum beat, the sound stops working on ableton. The only sound that does work is the guitar signal through the UX2. Is this because of my sound card?? Anybody know of a quick fix instead of rebooting/restarting the computer every time i do not calculate the volumes right?