Hi Matt,
It really is disasterous in my particular case. I updated to Lion, installed the 5.5.1 update, uninstalled the 8.5 drivers and reinstalled them, all with the same result I had with Snow Leopard. The timeline completely freezes when I try to play anything.
I’m going to have to unistall CS5.5.1 and reinstall CS5.5.
Peter Corbett
Powerhouse Productions
http://www.php.com.au