Problems editing "Style POSTS & PAGES"
 

Sorry, n00b here -- I didn't find the answer anywhere else on the forum so I'm asking for help...

I've successfully installed and activated and have successfully used the "Atahualpa Theme Options" page/menus to change many settings already.

But on the "Style POSTS & PAGES" page, whenever I click the green "Save Changes" button, I get an H-Sphere "page not found" error page. All the other settings pages seem to work just fine. Any thoughts on what the fix might be?

Is the problem repeatable?
What version of WordPress?
What version of Atahualpa?
link to site?