Cool, there's a couple of bugs. 1. Get 2 or more apps grouped in your taskbar. Hover you moose on that icon group and move it on up along the grouped apps' previews and leave the mouse on a grouped preview, like this. Finally, press win-tab, you're gonna see your current window (not the desktop image!) in the Flip3D background. Enjoy ! 2. Quite sometimes when you release win, suddenly the window from where you started to flip appears in front of you for a moment, a kind of ugly flash! I often see it with the MS "Chess Titans" running.