Exactly the same reason for registering here...
Got the virtuoso yesterday and have already ran into audio disappearing/distorted THREE times and I have only used straight USB connection, I haven't even tried wireless! Pretty much all threads are about issues with wireless, well, I'm having the same issue with the wired connection.
I have to either pull the cord and put it back in to restore functionality or switch between wireless and wired on the headphones.
Needless to say, these are going back to where I bought them promptly. Too bad, I like the design except for the USB connector being on the wrong side for me, I have my rig on the right side and jack is on the left side of the headphones...