Under 12.04.3, newly added wireless networks will have their "Connect automatically" box checked by default. Is there a way to arrange for this box to be unchecked by default, so I don't have to remember to go in and uncheck it every time I connect to a new network? Is there another way to prevent automatic reconnections to new wireless networks?
I would consider "upgrade to 12.10, 13.04, etc." a valid (though not preferred) answer if that will solve the problem.