Would someone help me out?
I am using IE5.2 on MAC. But when I entered the URL(not public one, it's the URL for testing purpose), I always get "the identity certificate is invalid" error. But the same URL is OK for Netscape. And I tried with other testing URL, they are fine.

Is it because the server running this URL has certificate problem? Or MAC need some set up? Cause I tried to add the local intranet zone or trusted site zone. It's still not working.

Sorry that I should post to MAC forum, but not lots of readers there:-)

Thank you very much for you information.