Leopard Annoyances II – X11
I’ve not been using X11 on Leopard that much but there are something I really dislike; like it absolutely have to open xterm when I launch X11, and it’s close to impossible to stop it doing so.
There is more talk about the issues on the X11 discussion list.
And some one (that is Tim Baur) have figured out how to roll back X11 to the version from Tiger. Here is one post about it.