Warning about Aperture 3.4 update

The problem is NOT fixed. After using my new REINSTALLED Aperture 3.4 and external library successfully for 3 times, now today, I have the same problem AGAIN -- Aperture will not load my Library. If I get a personal fix for my situation, I will repost -- this is really aggravating -- the old mantra that the reason to get a Mac was that it "just worked" -- is not the case if one has to keep checking online for work-arounds. aaaagh!