Our company is using an https site to access our exchange email from ie when we are off site. Our certificate which was set up a few years ago has expired and while I am working on renewing the certificate our users have been able just to say "yes" to continue into the website. I have one home user that gets to the certificate message, selects yes to continue to the website and nothing happens. Is there a setting in her ie that blocks this? I had her turn off pop up blockers as well as Windows firewall to test. She is using Windows XP Pro. Any suggestions?