In case somebody else on this planet besides me is using these... I've just updated my handful of packages on Hackage so they should now build with GHC 6.12.1. (In most cases, just tweaks to the package dependancies.) I have also changed the documentation for AC-EasyRaster-GTK, to hopefully make it clearer that all the event-related stuff is ONLY necessary if you want to display your images in a GTK window. Oh, and I discovered that I fail basic linear algebra; the AC-Vector package had a bug in vcross, which is fixed in 1.2.2 (but exists in all prior versions). AC-Vector gets a minor version bump because I renamed some stuff; nothing really "exciting" is different. PS. Apparently AC-VanillaArray causes GHC 6.12.1 to panic during compilation... I'll have to investigate that. Still, it does play with GHC.Prim, so that's probably got something to do with it.