WowAce

On both the lib and nolib versions [occasionally] when clicking on a different Bazooka options tab the game client will immediately lock up without any errors. Force quit fun ensues :)

I can confirm this as well.  Been trying to figure it out but it doesn't seem to have any rhyme or reason.

It also happens when trying to click away from Bazooka entirely to another addon's config page. I also noticed something else related to the config panel. I almost always right click on one of my bars to launch the config panel. Yesterday, I just randomly when to it manually by opening the game menu/options/addons process. When I did that Bazooka did NOT appear in the list of registered addons....but clicking made it appear. It also doesn't appear in alpha order, but always at the bottom of the list. This makes me suspect that it's something to do with the new config panel system of Blizz's that's being the problem.