Sorry about the problems you had, it was a copy/paste error on my part to not update the RichFaces extension jar for 3.1.1
If you go to the downloads page again it should now be fixed.
Also, in the next day or so I'll be releasing 3.1.2.Final, which includes a few more fixes.
OK, thanks. I see 3.1.2.Final just came out. I'll download that. Are there release notes for 3.1.2?