Correct Top Panel email notification on Screen0

I am using Unity-2d and the default Top Panel that is rendered. My setup is a 15" laptop connected to a docking station and a larger external monitor (Screen1) configured with Separate X and Xinerama, First, I do not care that the Top Panel is rendered on both Screen0 and Screen1. But what I see is that the Evolution new email notifications are only updated on Screen1 (I saw some older post that indicated an updated PPA for Evolution included a fix for notifications, but that had no impact here.)

So I would like to see the notification updated correctly on Screen0. If this requires me to restrict the display of the Top Panel to Screen0, then I would need some information on how to accomplish this (toggling Stretch flags in gconf-editor made no change.) Or if there is a way to have the new email notification updated correctly on both Screen0 and Screen1, then I would appreciate any information in that regard as well.

Coincidentally, I see the opposite behavior for Evolution appointment notifications (and I have to run to one now ;-) ). The appointment notification indicator is raised on Screen0, where I would expect, and prefer, to see it. So this may be an indication that the email notification applet is at fault.