I have just upgraded to mavericks and am started to wish I hadn't. FCP7 used to run perfectly on my old system with no crashes. However If I leave it and have to 'wake up' FCP7 it shows a jerky loop in the viewer window before quitting unexpectedly, the error message alludes to a problem with a plug in but I have no idea how to find out what plug in it is or what to do even If I did know. Any advice is hugely welcome. Cheers.