In response to Ken's questions about Copybits and Copymask,etc. as regards applcations to skins etc, I worked a demo for him with my old TweenMachine interface to show some possible ways to handle mouseovers, button clicks, and buttons, and copymask as implemented in a slider of sorts. http://www.artlythere.com/futurebasic/mouse_graphics_demo.hqx It isn't the prettiest code, nor necessarily the best way to implement such in all cases, but should give ideas to those who need them. Just to upset RP, I added some extra globals. :) (he is global-less master) Robert Bob