Hi Guys, i have Mac OS X Yosemite. With Parallels is have a Win 7 Guest System. I try to use my Turtle Beach PX 51 Headset with the Win7 System. So when i plug in the USB i get the Message, use this device for Mac oder Win. I select Win. I can see the Bubble - new device in Windows. Everything okay. When i switch to "Sounds", the turtlebeach is not listed there. When i start the Turtlebeach Software for loading ne Presets to the Headset the Programm also sys - no Headset found. What can i do?