Hello and thanks again!
I tried Auto Return several times, with their required language on the destination page, but it didn't work.
While researching Auto Return, I found a description that said it will work unless the site's code or form specifies a different return page, in which case that code or form will override auto return.
Since it is not working for me, I assume that guest_step_2 is specifically being called by something in my site code: either the pp_express extension or some other file.
I've looked everywhere but can't find it.
Any other ideas or suggestions?