I have been able to get MM to sort the way I want by using the column heading clicking methodology. However I have notice odd behavior. I have noticed that reseting my sorting wishes often on takes effect only after I have removed and then re added the collection in the collection selection option.
I believe the real solution is to order the sorting inside the "Tools" --> "Options" --> "Media Sharing" area and not the basic "Show Details" of the main screen. Everytime I get the sorting set the way I want I end up browsing my music with different sorting and mess up the sorting I want for DLNA browsing. These are two seperate tasks and do not have anything to do with one another. Make the setting for how to sort the DLNA lists seperate from the "Show Detail" view.
I have used other DLNA servers but would prefer to use MM due to the ability to have the "Album Artist" listing which helps keep the size of the list down and therefore my DLNA controller more responsive. Logitech Media Servers DLNA server can not present the "Album Artist" as a list.
In addition using MM for my DLNA server will hopefully make it possible to add other database fields to the DLNA sorting list in the future. But that is a topic for another thread.