Just did a clean install of Lion (from scratch) and FCP7 on my MacBook Pro i7. After just one project, the experience is not all that great.
-Lots of “out of memory” errors when rendering, which never happened before, even though I have upgraded to 8GB of RAM with the update. Rebooting FCP seems to fix the problem for a while.
-I have an external monitor plugged though the DVI port, which I use for preview. Picture freezes after 10/20 minutes of use. Refreshing A/V devices doesn’t seem to affect, and the only way to get the picture back is by rebooting FCP.
-Exporting with quicktime conversion is buggy. Some of my final quicktimes (H264) had frozen frames and glitchy audio. Deleting renders and re-exporting didn’t help. Had to export uncompressed and use Compressor. Sending straight from the timeline to compressor was giving “out of memory” errors.
It has just been one project, but my settings have been the same that I have used regularly in this same system for a number of years (ProRes HQ), and never came across any of the above.
I will reinstall Final Cut Studio before the next project, and see what happens…