Hello - I am running Parallels 9 on Macos X 10.9.4. I have installed two Linux guests, one running Kali, the other Fedora. They both run great! Only one issue. I added 'USB & Bluetooth' under the Hardware section of settings. When I plug in any USB device, Parallels asks me if I want the device to be used by my Mac, or by the guest (Linux). I choose Linux, and I get this errror: "There are no virtual USB host controller ports available in the virtual machine for the [XXXX] device to be connected" Replace Xs by whatever I am plugging in. I reinstalled Parallels tools for the guest OS, and this did not fix the issue. When I run 'lsusb' in linux I get: 'unable to initialize libusb: -99'. Remember, this is in two different Linux VMs, both with different distributions. I searched the web pretty thoroughly and haven't come up with a solution. If anyone can help me, I would really appreciate it. Thank you