>>Get rid of the underscore in the querystring name.
>
>Tim,
>Thanks for the reply. I tried it, but it made no difference. Thanks anyway,
>jfh

I tried your same code on my web server and the page works fine. You may want to turn off the "Show Friendly HTTP Error Messages" from your internet options to see the exact error the web server is sending to the page. Here is a link to an article that will show you how to turn this setting off:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;q294807

Good luck.