Apple released an X11 update on 1 November 2006. It fixes a but that I commented about, regarding the cmd+tab and the X11 windows not coming forward.
On the other hand there appears to be an issue with the fonts in that build. This seems to affect the current official release of OpenOffice.org on the Mac. I didn’t notice it at first because I have been using builds made by my ooobuilbot MacPort1.
The current workaround is to remove the Vera fonts from /usr/X11R6/lib/X11/fonts/TTF. For more information please see issue 71096.