Description of problem:
If I use the ctrl-alt-up/down cursor keybinding to change from one virtual desktop to another, applications on my secondary monitor remain in view.  This is despite the fact that those apps are actually on virtual desktop one and I have nothing currently residing on virtual desktop 2.

Version-Release number of selected component (if applicable):
gnome-shell-3.0.0.2-1.fc15.x86_64


How reproducible:
Every time.

Steps to Reproduce:
1. Use ctrl-alt-down cursor to move down to a new virtual desktop.
2. 
3.
  
Actual results:
The apps on the leftmost/primary monitor slide up, revealing the new desktop but the apps on the secondary monitor do not.  This is despite the fact my dual monitors are configures to show a virtual desktop spanning two screens.

Expected results:
Both monitors should be synchronised since the one desktop spans both of them.  The apps should "slide up" at the same time on both, revealing the second desktop.

Additional info:
This happens in both normal mode and Activities Overview mode.  

Screenshots forthcoming.