Apple has released a Snow Leopard font update, which addresses the Open Type font problems introduced by Mac OS X 10.6.7. Hundreds of people have reported on the Apple Discussion boards that this update has fixed their font problems, and Techcare has also had good success with it.

If you have installed Mac OS X 10.6.7, and are still experiencing problems with Open Type fonts after installing the Snow Leopard font update, try running Font Nuke to clear all font caches.