How did you get the joomlboard here to connect the PM message with uddeim ?

In joomlaboard private message drop list they do not have any options for uddeim yet on this board you seem to have intergrated it

any ideas ?

Check out this posting.
I think this will answer your question.

www.joomlapolis.com/component/option,com_joomlaboard/Itemid,38/func,view/id,4535/catid,25/