Motorola Xoom :: Mount USB Storage Before Using Camera?

I was using the camera to document something I am doing. I took a few pictures and then hit the power button to shut off the screen, When I later hit the power buttom to wake my wifi xoom, the xoom awoke back into the camera app, however, the screen for the picture was black. I hit the "back" button and it illuminated blue to indicate that I had hit it but it remained blue. It was stuck. I hit "home" and it gave me a message to force close the camera or wait. I force closed it and attempted to restart the camera app. It wouldn't restart so I rebooted the xoom.Now, the camera app starts up and shows a picture, however, I get the subject message "Mount USB Storage Before Using the Camera"