You might want to talk to someone involved with ISBoxer; I've not had anything to do with it, but from the ISBoxer wiki, it looks like it does some sort of automatic Jamba integration, which will be broken with 0.5 (unless its been updated to handle 0.5).
The jamba options should be pushing to slaves correctly. Make sure you are using 0.5 Update 4 as I have made some bug fixes to the display team code.
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