[MlMt] Dual Mode Layout

[Allie Martin]

Hi,

Just trying the experimental dual mode layout.

Seems to be working fine.  However, on initial activation, the MailMate 
window is blank.  Hitting the user configured key to switch from message 
view to list view brings up the message viewer first, followed by the 
message list.

I'd expect that the message list and mailbox view should come up first 
on activation of the layout.  On hitting the keyboard toggle, then the 
message view would appear.  No blank screen at all.

—
a Curtis m