Chuck, Regarding the browser it happens in both Chrome and IE and I don't think it is browser related. And regarding the cache header directives since that page is coming from a secured location per http://tomcat.apache.org/tomcat-7.0-doc/config/valve.html I changed the Form Authenticator valve so it send the same header as tomcat 6. Here is the new header coming from tomcat 7:
Server Apache-Coyote/1.1 Pragma No-cache Cache-Control no-cache Expires Wed, 31 Dec 1969 16:00:00 PST Accept-Ranges bytes Etag W/"42566016-1196152620000" Last-Modified Tue, 27 Nov 2007 08:37:00 GMT Content-Type video/x-ms-wmv Content-Length 42566016 Date Fri, 18 Nov 2011 23:34:49 GMT but still the problem exists! Thanks.
