There is a plugin to migrate down Dash — Unity Shell Rotated. About it already, which says a lot, for example here
Installed it, went to CompizConfig Settings Manager, disable the Unity Shell, included Unity Shell Rotated. Conflict messages, I was allowed — and all. A zero response. For the sake of experiment disconnected both still. Unity starts, Dash to the side hanging.
What to do?
PS Ubuntu 11.