On Thu, Aug 27, 2009 at 09:00:53PM +0200, Nils wrote: > I myself use toggleLayouts, but its definitly "Full", not "FULL". ;) Oh snap. Typical think-before-post. :) Did you import both, "XMonad.Layout.MultiToggle" *and* "XMonad.Layout.MultiToggle.Instances"? I can't see any other mistakes tho, your code works fine here.