Whenever I have the Skin AeroVista by Kol enabled on WB5 and then run WinFX, an annoying black box surrounds the window that I'm dragging around. It then quickly disappears after I let go with my mouse. Is this because of the skin being a "per pixel skin"? Is there anyway to avoid this black box from happening every time a window animation plays or is this a known problem for "per pixel skins". Any kind of help would be great.