I've been working with Logic 9 for a couple of weeks now and it's been very stable for me. It's on a MacBook Pro 2.16 GHz with 2 GB of ram, Leopard 10.5.8, Zebra 2, NI B4II, VSamp, Augustus Loop, etc, and a bunch of freebees as well. I came from Digital Performer 5.13, so I'm appreciating...