It seems that I fixed the problem and it had something to do with the Itemid= in the mod_joomleague_navigation_menu module. I had left this blank originally but once I set it
to Itemid=1 the problem was solved.
This resolved the problem of my other modules disappearing once I selected an option.
P.S. I just wanted to say thanks to all the programmers on this project, you guys have done a FANTASTIC job!!! Joomleague :censored: rocks!!! :biggrin: :biggrin: :biggrin: