Comment #7 on issue 311 by allbery.b: using noBorders on tabbed layout freezes tab bar on workspace change http://code.google.com/p/xmonad/issues/detail?id=311 I haven't seen this, but have seen a possibly related anomaly involving noBorders and tabbed: I have a layout with a moderately involved PerWorkspace layout on one workspace (toggling between tabbed and several others as clients of the IM layout, for flexibility) and the rest using Full. What I found was that, if (noBorders Full) was specified *after* PerWorkspace, tabs were only drawn once, and ignored my theme. I could see something trying to update them afterward (flickering on focus changes), but no actual changes were painted. If I moved noBorders *above* the PerWorkspace, tabs worked as expected. The same happened if I substituted smartBorders for noBorders anywhere in the above. (Additionally, I find that tabbed is only using parts of my theme, even though if I trace through the code it looks like the right colors are being passed to the right places. I don't know if this is related, a different bug, or if I'm doing something silly, though.) It'll take some work to simplify my xmonad.hs enough to provide a test case/example.