If Emacs is broken under under Leopard, time to reinstall

I bought a Mac Mini a few weeks back.  I bought it just one week shy of Apple's release of Leopard, knowing that I'd have to do the upgrade myself and pay an extra $10 for the DVD, but the siren call of pretty new hardware was too strong to resist.

I did the upgrade the Monday after Leopard came out - a straight in-place upgrade - and everything seemed to be fine. 

But all was not well.  Emacs was my canary in the coal mine; when I fired up a terminal and started emacs, I got the cryptic message " Fatal malloc_jumpstart() error"

This discussion convinced me that something broke doing the Leopard upgrade in place, so I went back and reinstalled Leopard using the archive and install method.  Problem solved.