Switching on the music in the car this morning, the MMI displayed the message Loading Source Please wait... and I waited, the music never came. I was attempting to play music from the SD card, changed the source to the AMI using a USB memory stick and then to the phone through Bluetooth. Still I waited. The radio, phone through BT and sat nav worked perfectly well. Removed and replaced the SD card and USB stick, switched off engine and restarted, still no joy. I left the car for 8 hours whilst at work, and when I returned everying was ok! Anyone else seen this?