Yes they tile nicely.
Check out this screen grab of my configuration.
[url]Kenneth R. Alcock]
That screen resolution is 1280 x 1024
I used these image sizes: [ul][li] Folder tree background about 225 X 225[/li]
[li] Lister background about 400 x 400[/li]
[li] Viewer background about 400 x 400[/li][/ul]NOTE: The viewer background only appears when the viewer is not displaying a file. But with the emergence of all the viewer plug-ins currently available, this is almost never!
I submitted a boatload of customized DOpus images (including the ones in that screen grab) a couple of years ago, they should be available for download somewhere. You might have to ask Tanis where he stuck them.