You probably want to set a different "edit" screen for the site or installation. Use one that doesn't have an overbearing background.
You can also do some configuration of the editor to do that. This link might provide some help:
http://www.dnnsoftware.com/forums/f...ope/posts, but make sure that anything you do is for the DNN Editor. There is a lot of stuff floating around about the old FCK editor and Telerik editor that probably don't apply.
Let me know if you need me to dig into this a bit more.