I recently upgraded from Ubuntu 10.10 to 11.04. Everything works well except the workspaces refuse to form more than one row and I'm use to working with a 2x2 grid. The dimensionality of the workspace settings is reflected in the "desktop expo" behaviour obtained from the button in the unity dock, but is not in the Ctrl-Alt- switching. See screenshot:
Neither the compiz settings (general options) nor indicator-workspaces seem to be able to properly fix this. From reading around, most other people are not having this issue.
Has anyone got some ideas on what has gone wrong and how to fix it?
(n.b. that I'm using Unity 2D)