Quote Originally Posted by Chrysanthe',index.php?page=Thread&postID=139641#po st139641][color=#990000][font='Comic Sans MS
How is the auto-promote master supposed to work - when my main leaves and joins the group again or my main gets DCd, Jamba won't promote my main to leader again.. why?
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Jamba promotes the master to leader only when you change the master (like /jamba setmeasmaster all). Jamba can only promote the master to the leader if one of the other toons is the leader already. So in you case, after a disconnect, just run your make me a master macro again.
Quote Originally Posted by Chrysanthe',index.php?page=Thread&postID=139641#po st139641][color=#990000][font='Comic Sans MS
And (my second question) what does the focus actually do, because none of my toons does have a focus set, even if it says "Focus set to....". I always have to set the focus manually to my main.[/font][/color]
You need to keybind Jamba's set focus to master method - read the thread linked below...

[Addon] Jamba - An assistant for multiboxers. 7th Update - 0.3b released.