I am a long-time user of Outlook and am extremely frustrated by the folder listing that separates email by account name in 2010. Has anyone found out how to display messages from all accounts under one "All mail" heading as in prior versions? I have moved to Thunderbird until I can find a solution. For me this is an example of "better" being the enemy of "good." I would have preferred that they left this one well alone or provided the option to go either way.