I had to code a Javascript function to keep the browser from recording each unique ad URL in the browser history array after each redirect / reload for the ad frame. Now, the browser doesn't keep track of the ad frame, and therefore, the back button can't do anything with it (more or less). I still have to play with IE3 and Netscape 2 however.
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Dan McClain, Editor
The Mustang Works Online
1991 Mustang GT - 10.90 @ 122 Mph
Built, Blown, and Fast as Hell!