I haven't looked at it in a while. I would really like to do this now because the shadows under the windows seem to cause a major performance regression with translucent windows. My problem was that I couldn't figure out how to set up the clipping regions to not include the area under the window. My X programming skills are, well, lacking, to say the least. I'm sending this also to the list in case it ignites interest from others who are more capable than I am. <div class="gmail_quote">On Wed, Mar 11, 2009 at 3:16 PM, <<a href="mailto:hgabreu@gmail.com">hgabreu@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Do you had any success removing xcompmgr shadows underneath windows? I'm interest in that effect too.. Thanks, Henrique Abreu <a href="mailto:hgabreu@gmail.com">hgabreu@gmail.com</a> </blockquote></div>