All standard JDE menus in 7.x are "G", in 6.x they were "A" and way back in 5.x (I'm showing my age...) they were "M". If you upgraded from 5.x to 7.3, could these be old menus that simply need deleting?
Programmer/Developer/Anything-They-Give-Me
World A7.3 11 (quite stable and usually happy)
Attempting CO with Xe, AS/400, V4R5 (not happy)