Thanks for all the info; my first "guess" is that the new quest watcher is putting too much strain on the addon channel.

It's going to be a few days before I can have a look at the issue, so if you can be bothered, you can help by downloading Jamba 0.5i from http://wow.jafula.com/addons/1-jamba...elease-history and trying that version (without the quest watcher).

If the problem goes away, then we can blame the quest watcher. Please let me know if you do this and how you get on.