Well, typically, after searching for a while before sending this to the list, I find the answer two minutes later. User Configuration à Admin Templates à Windows Components à Internet Explorer à Internet Control Panel à Prevent Ignoring Certificate Errors Unfortunately, this only works on IE7. Guess I'm out of luck on 2K. Thanks, James From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of James F. Prudente Sent: Friday, October 26, 2007 2:29 PM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Prevent Invalid Certs Hi All, Is there any way to use Group Policy to prevent users from navigating to a HTTPS website with an invalid certificate? Thanks, James