Hi again,
meanwhile I found out some things that change the situation.
- it seems as if the problem is specific to my mac, as another player tried it out on his G4 (with OSX 10.4 also) where it worked.
- as it seems, the client doesn't crash (technically) but gets awfully slow when loading the Bronze Doors-Area. I found that out, when I let the client run, when I was away. After I came back (about two hours later) the window showed my character on this lightbrown pathway of the new area. So it seems., the area had been loaded. But the display of Planeshift was frozen (couldn't do anything, so Planeshift did not crash, but "hang") and via ActivityViewer I found out that Planeshift used about 1.38 Gigabyte of RAM and about the same amout of virtual memory.
Don't know if this does anything to solve the problem, though.