FCP Freezing a lot after update to 10.1
I recenlty upgraded to 10.1, and did the updating of my Events into a Library. But now whenever I try to navigate around the events in the new library it constantly freezes, showing the beach ball for anywhere from 30 seconds to several minutes. It happens if I scroll up and down the event list, if I click an event, if I try to scroll up and down an event's clips, etc No matter what I do, it freezes, so I can't edit or do anything with the videos in this library.
I created a new library for new content that I'm making now, and that worsk fine. But now I can't edit the videos I from the updated library, which needless to say is a very bad thing. I've tried re-running the library update several times. I've trashed the prefs. I've even completely uninstalled and re-installed FCP.
Any suggestions?
MacBook Pro, OS X Mavericks (10.9.1)