Recently, I had to move to a new laptop, which meant that I had to finally use the upgraded Logitech Gaming software to use my G930 headphones instead of the older software for which I no longer had the installer. This really caused me a lot of frustration for a few days, because whenever the Logitech software was running, my mouse (A Razer, really hoping to replace, which would probably have solved this problem in the first place) would just cut out. I set up my mouse with the Razer control pad, whatever it's called, but then disabled that software from running, because you don't need it. But what this boiled down to is that with only the Logitech software running, I could choose between my headphones or my mouse.

Turns out that the Logitech software installs several virtual devices. So I had it installed just to run my headphones, but it also installed a virtual mouse and a virtual keyboard. What ended up working for me was disabling the virtual mouse in the device manager (devmgmt.msc\Human Interface Devices\Logitech Virtual Mouse). This kept my Razer mouse from cutting out anymore, and now both run with no problem. Just for the record, I don't think you can disable the virtual keyboard with the G930 if you want the side hotkeys to work. Haven't tested this.

So if you've got Razer and Logitech peripherals on the same computer, this might be a problem for you. If it matters any, this laptop is running Windows 8 until I can get another copy of 7. Hope this helps someone.