None of my Linux boxes can do full-screen HD Hulu without blockiness and jerky video. This includes all major video cards (very recent ATI 4850 and nVidia 9xxx, as well as older Intel onboard, ATI 3200 onboard), and both 32 and 64 bit builds of Flash. I'll give the desktop player a try, but I'm not holding out hope of being able to use it for actual big screen viewing. I sometimes watch shows in a window while working, and that works fine on all of my Linux boxes. But full screen remains useless.