4
Tried changing the "Default Comment Display Mode" but it only changes the comments, not the forums.
Or at least it doesn't work for me. Selecting anying there doesn't affect the way posts and replies are displayed in the forums.
In my old XOOPS site, for some reason the forums were flat (how I want it). Now though, a good year later when I put XOOPS back on I can't find out how to make the forums stay flat, they seem to revert to threaded each time I log in as if it doesn't remember my settings.