No USB Devices Attached?

[BizziRick]

Hello,

I am using a Windows 7 host (64bit) and a Windows VM v5 guest. I cannot get the VM to recognize my USB devices: XBox Controller and CrazyRadio PA dongle. I have all the drivers installed and my host recognizes the controller/dongle but my VM does not. I even tried an earlier Virtual Box 4.3 version but the same behavior exists.

Is my host preventing the VM from recognizing the USB devices? The state of the USB devices reports "captured" but when I try to select, I get a VirtualBox Error "Failed to attach the USB device Bitcraze Crazyradio PA USB Dongle to the virtual machine VM_Windows. USB device 'Bitcraze Crazyradio PA USB Dongle' is busy with a previous request. Please try again later. Result Code: E_INVALIDARG (0x80070057)

I've spent hours pouring over the forums and trying to find a solution but nothing has worked for me. Has anyone seen this before, anything I can try to fix?

Thanks,
Rick