Detect it once, typically on your index page, then either set a session variable or a cookie that times out in a day or two. On subsequent pages, look for that session variable or cookie, if it isn't found, then do the detect (this would handle situations where a URL is emailed to someone else, or if they bookmark a page and then make system configuration changes). Make sure you pass a return URL to your script that checks for the Flash, so the browser can be sent back to the correct page after you recheck for Flash. Ideally, you can handle the above in a server side include that you can place on each page. HTH - Abdullah > But this means I'd have one Flash detection page for every page with a Flash > movie on it. > But could there be a simpler way to do this?