This problem continues to happen multiple times daily. Sometimes changing the "send user agent" fixes the issue after one or two tries, other times it takes 10-20 times before it moves to the next screen. I give up. This clearly seems to be an Aquamail problem, as Nine works fine. I can't and won't continue to spend time and frustration trying to hack this problem with the user agent. I've frozen AM and am using Nine, and can't recommend AM until this problem gets fixed.