With this news on hardware accelerated Radeons: http://www.heise.de/newsticker/meldung/Quelloffene-Linux-3D-Treiber-bekommen-OpenGL-4-0-Unterstuetzung-2760942.html (sorry, German only but Gogole translate could do the job) I wondered if our Radeon driver are hardware accelerated, too, at least for 2D. Because when I grab a window on Ambient, hold down the left mouse button and throw the window around for some seconds then the CPU goes up to 100% on a 1.5GHz Mac mini. But just moving around a window should cost the CPU nothing. So it seems like the CPU does all the job instead of the GPU. Is that true? If yes, will it change at some point?