Hi, I'm having trouble exporting a 10 minute mix. I have tried various settings, yet it keeps sticking every few seconds. I have to keep clicking on the Apple sign at the taskbar for it to progress. I have the following settings currently: 640x360, Preset: High Quality Fast encode 29.97. I Have also tried lower quality settings. Another problem I'm having is Picture in Picture with Apple PiP. The webcam video flashes black all the time. I have selected "lower full screen level" and also tried H.264 compression type. Could you please advise? Thanks in advance