Well, it may not be you! As I said, there are two default galleries in each account and I've no idea why the inbox would show up within a subgallery. That said, I'd think if the one photo in the in box were moved out, the in box might no longer show because it's empty. That might be sort of cheating, but could be a work-around. A description of what you're seeing sent to
support@pbase.com might provoke something useful (albeit mayhaps not quickly!)
EDIT: Hmm - OK - I finally worked up the nerve to try this (having initially feared I might get myself into something I couldn't get out of
). I uploaded an image to my In Box (which is a subgallery off my root/All Galleries page. With an image there, the In Box shows up in my All Galleries page, with no image, the In Box doesn't show. That confirms what I thought about that.
With an image in the in box, I clicked on 'Edit root gallery' and displayed the contents of that top level hierarchy. Sure enough, I see In Box in the root gallery contents. So I dragged it to one of my small subgalleries and it worked, showing up in that subgallery instead of the root. I went into edit on that subgallery and was able to drag it back to the "root" gallery, no problem. Note that it is a bit confusing that the top level gallery is named "root" but titled as "All galleries," don't know if that's caused you any problem.
DaveT