My footage is XDCAM HD from a Sony Fs5m2. Check out this screen shot, I cannot get the "Separate audio" option to come up at all. You'll be able to see the test footage either side of my clip - with audio perfectly separated. It's driving me mad. I am willing to concede that I may be stupid and have missed something simple - but where! I also can't cross fade audio, I go to disolve, I apply the effect and... no effect whatsoever. Are these connected?