I'm experienceing similar issues:
PersonalBrain freezes several time per day. I have not been able to connect it to a particular set of circumstances.
I cannot move to another thought, I am stuck on the thought in focus.
I cannot scroll up or down in the notes attached to the thought.
I cannot move between Thoughts/Tags/Search/Reports/Calendar tabs.
The PB File/Edit/Thought/View/Options/Help menu appears to be accessible, but nothing happens when I click on a dropdown, except perhaps a spinning rainbow wheel
PB does not respond to Quit command.
CPU is pegged around 100% for the PB app, other apps work fine.
Eventually I Force Quit. I may lose the last entry in a Note.
After starting PB again, seems fine (for a while)
How do I generate, and where do I find, an output.log file to assist in troubleshooting?
MacBook Pro, 2.53 GHz Intel Core 2 Duo, 4 GB RAM, OS X 10.6.5
1,055 thoughts, 1,334 links, 823 notes, 406 internal file attachments, 908 external file attachments