another "aperture cannot access this library" issue
I was working in Aperture 3.2.3 on an external library using mac osx 10.6.8. I have been using aperture 3 for a few weeks after updating from aperture 2. Everything was working well. Suddenly, part of the Aperture window briefly flashed partly black, then recovered, but I could not select anything on my computer (thought the mouse still tracked). I could not get to the dock., or force quit using key commands. Thus I was forced to hold the power button to restart my Mac. Everything seems to be fine, except for Aperture which says Aperture cannot access this library. To use this library, make sure its file permissions are set correctly. I held down the option command key combination upon starting and was presented with the option of repairing permission, repairing the database, etc. I chose repair permissions, this did not solve the problem. I chose repair the database (22,000 photos), this did not solve the problem. I used the get info command on the aperture library, and saw the library was locked. I unlocked the library and cannot change permissions, because all of the choices are grayed out. The choices do say I have read/write access. So I do not know how to get to my library. Any suggestions would be appreciated.
Thanks,
Paul
Mac mini, Mac OS X (10.6.8)