YOu tried deleting the cookies manually, You emptied the contents of the temp internet files, Ok, now try this, Go to internet options, click on privacy, then click on the edit button at the bottom, the add the sites that you are having the cookie issues with. See if that resolves it. ALso try lowering the security levels to the lowest settings and visit the sites. Further try opening internet options, click the advanced tab and choose the restore defaults button. If none of that works, try mozilla: http://www.mozilla.org Hope that helps. Update: Went back and reread your post, and seeing that this happened after you installed Win2k3 server, I thought I'd give it a second shot: http://support.microsoft.com/?kbid=816465 Try the suggestions listed on that site. TEll me if it helps. That sounds more like the trouble you are having. SYMPTOMS After you upgrade to Microsoft Windows Server 2003, you may find that your list of Trusted sites is missing. CAUSE This issue occurs because Internet Explorer Enhanced Security Configuration is turned on by default and your list of Trusted sites was not imported to the list that is currently in use. The version of Microsoft Internet Explorer in Windows Server 2003 uses two separate lists of Trusted sites; one list that is in effect when Internet Explorer Enhanced Security Configuration is turned on, and one list that is in effect when Internet Explorer Enhanced Security Configuration is turned off. When you upgrade to Windows 2003 Server, your list of Trusted sites in an earlier version of Internet Explorer are imported into the Trusted sites list that is used when Internet Explorer Enhanced Security Configuration is turned off. RESOLUTION When Internet Explorer Enhanced Security Configuration is activated on your server, the security settings for all Internet sites are set to High. If you trust a Web page and need it to be functional, you can add that page to the Trusted sites zone in Internet Explorer. To do this, follow these steps: In Internet Explorer, locate the site that you want to add. On the File menu, click Add this site to, and then click Trusted sites zone. In the Trusted sites dialog box, click Add to move the site to the list, and then click Close. On the View menu, click Refresh to view the site from the Trusted zone. On the Status bar of Internet Explorer, confirm that the site is now in the Trusted sites zone. ANd below is a similiar article discussing this issue: http://support.microsoft.com/?kbid=815141