I have an app on a test server and a production server. Pages are exactly the same. App uses session variables. The production works fine. The same pages on the test server won't hold the session variable data from page to page. All other ASP works. Session seems to be reset on test server. All known issues from MS Knowledge Base checked: uninstalled anti-virus sofware(Article 303881); pages are not in a frameset (Article 1780370); Global.asa is not empty (Article 281298); nested virtual roots don't seem to be issue -- navigation is confined to one folder (Article 173307). IIS settings checked and matched on both servers. Session enabled on both. Both Windows 2000. Rolled back test server from SP 3 to SP 2 to match production server -- no luck. Any ideas?