I made a reproducable failure for the colormap issue in cog. get the image at http://cobalt.cs.duke.edu/pub/CogColorMapBug.zip then do: (CIconLibrary default at: #SubMenu) colormapIfNeededForDepth: 32 On cog 2348 and 2349 on linux, it fails the first two times you execute it, then succeeds afterward -- Matthew Fulmer (a.k.a. Tapple)