Span option not incorporated

[Slick]

To get dual monitor wallpaper to work in Ubuntu 10.04 you need to set the wall paper style to "Span". Drapes does not know how to interpret this so it proceeds the same way as if the style was set to "None" and "None is displayed in the style on the preferences window. This disallows the selection of wall papers as that area is grayed out. The work around to this is to select all the wallpapers you want and then using the Appearance preferences set the style appropriately.