Simple: efficiency tradeoffs. We could embed the menu into the main 
frame and ditch frames entirely, but then we'd have to render it on 
every page load.

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Thank you for very much for all your work with regards to this 
fantastic project.

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In my opinion :), if imp is checking every minute to see if you have 
new mail, it should also refresh the "Dynamic Menu Elements" if it 
finds some.  I also think it should update the "Dynamic Menu Elements" 
after you have deleted\purged your mail -- otherwise the menu shows 
you have new mail when you do not.



I am curious to know why you wouldn't want the Inbox icon to be as 
accurate as possible.

Of course it isn't. Like it isn't when you get new mail. How should 
that work anyway?

After deleting\purging mail, the Mail\Inbox menu icon is not updated 
until the next refresh of "Dynamic Menu Elements."