NB> I don't remember how old A46 is now, or when the change was made, but
 NB> you might want to try adding another pipe after, ie: |DFmainhdr| and see
 NB> if that works.

That might help but he shouldn't need to.  The entire default install uses DF
in the menu settings and its working so there is something else going on. 
There is a new display file system but I've just installed a fresh copy of A47
in Linux and Windows 32 and its working.

--- Mystic BBS v1.12 A47 2020/10/16 (Windows/32)