I am on the third vdesk and notice the third vdesk in the pager. All you see is the window border but not the content. This effects luncher previews as well. To reproduce open some windows on your first vdesk and on your second vdesk. From your first vdesk restart E. You will notice in the pager and luncher previews, the windows on the second vdesk don't show up properly until you switch to that vdesk and focus them.