Anybody still using Tiger? We are, because we have stroppy X11 packages that don't work on Leopard. Anyway, if you install Security Update 2009-002, X11 will break. Why? Because applications are referencing a package - libexpat.0.dylib - that's been removed! Symlink libexpat.0.dylib to /usr/X11R6/lib/libexpat.dylib and lo! X11 starts working again ( Read more... )