Hi Tom - re: RingCircle - I just gave it a try over here and it seems to be working fine for me for the Nov-21 beta...

Maybe you have an old version of it?

Try downloading the one from here:
http://kyticka.webzdarma.cz/3d/moi/cc/ringcircle/RingCircle.zip

Let me know if that helps or not...

- Michael