ADSelfService Plus - Redirect HTTP to HTTPS

Hello -
We're running v5.5, build 5521.

We've successfully enabled SSL to port 443. So, accessing https://ad.mydomain.com takes users to the SSL enabled version of the login page.

The way I understood it, once SSL was enabled, any HTTP requests should automatically forward to HTTPS. But, that doesn't seem to be the case for us. If a user enters either ad.mydomain.com or http://ad.mydomain.com, it takes them to a non-secure version of the site.

In server.xml, the line begining <Connector URIEncoding... has port="80" and "redirectPort="443".

Is there something else that I'm missing that might be affecting this? I certainly don't want to send users to an unsecured site to change their password.

Thanks,
RobinH