Thanks for the help. If you have a white background with a website like myspace where everything is within a central box, I imagine the problem is greatly reduced. But looking at the login homepage on Facebook there are two blue strips that run off either side at the top of the page. If I change my screen resolution the blue bars still run off the sides, and only until I set it at 800x600 resolution do I get a scroll bar at the bottom. I'm not sure how to do this as I want to use a jpeg tiled in the background and I would like it to run off the sides of the page without a scroll bar appearing.