I rebuilt the page it was pointing to, updated the nav menu, and now it seems to work.  Something went very wrong with the page it used to live on (I can't find it in the page list, but I can find reference to it in other places that talk about pages... very odd).

so the profile stuff working now too?

Seems to be. Super weird considering we didn't touch anything to do with these pages.

well, glad its back! 🙂