I have a M Audio USB Audiosport (mic pre-amp & A/D converter), which I only use for recording. Usually the device is disconnected. When starting VV4 I get an error message: "M Audio USB AudioSport ASIO. Failed to initialize the USB driver. Make sure your USB Audiosport device is connected. Press OK when ready." The Audiosport is NOT set as Default Device on my PC. This never was problem on VV3, nor on any other A/V software. How do I keep this message from popping up?