This is hard to explain but when mousing over settings, the drop down menu itself does as it should, but the links in the menu do not show properly, it is maybe two or three links and a white backgroound.
Here is what I have found, this is related to the "Break at __ pages" setting. I tried 10, 30, and finally, at 100, it made a long list and worked. Yes, I have a lot of plugins.
Any ideas? Thanks Ozh, this is my favorite of all of the plugins I use!