"Add to Favorites" in gnome 3

[Kevin Wilson]

Hi,
I tried twice in fedora 15, gnome 3 , to add an application launcher
to "favorites" of the  side panel  by right-click on an application
launcher and select "dd To Favorites."
An application launcher was indeed added to "favorites" of the  side panel.
However, after boot, the  application launcher disappeared from
"favorites" of the  side panel!
Any idea why ?

rgs,
Kevin