I sometimes think I exist solely to report browser crashes to you. Not really, but there's another one. The steps:
Go to the main admin page. Log on.
Click on "Edit Navigation Bars"
Crash with the mysterious (and probably useless to help) Type 2 error.
I'm still on Mac OS 8.5.1, Netscape Navigator 4.08. I haven't tried it with IE yet, but I will if that would be helpful. I wanted to log the problem before I forgot what I'd done. The rest of the admin system seems to still be working (I just now checked a couple of the areas and no kaboom).
The brand new Navigator 6 is built on what is supposed to be the most standards compliant browser ever. Once it's officially, fully released I'm on it like fleas on a hound.