it seems that did the trick.
It's still showing the beachbal too much for my liking but no crashes yet.
Frank - good to hear. I did that for my 8-Core MP as well (I have an early 2008 with 12GB of RAM) and it seems to be working fine. Libraries are on an external Drobo. My Aperture 2 files weren't that large because I had been using LR / LR2 for the past few years. I will be migrating files over. It feels like they rushed the final out the door a bit, but I really, really like this program. I'm creating several libraries because while Apple says that Aperture can handle super large libraries, organizationally it makes sense for me to do some splitting up.