Empty diagram view on upstart has little grey box and sliding effects

Just installed the new 2.1.345 RCP and started it up.

The diagram is visible, and it shows a little grey box and has a sliding effect which brings my attention to it when I open Eclipse.
We should not render anything in the diagram view if we are not connected to a running app etc. So it would be empty, and not draw a little grey box.

See screenshot of how Eclipse looks when I start it up.