I recently developed a website that has a real SSL area protected by a real valid SSL certificate.

However, I was getting complaints that, under SSL, browsers croaked about some parts being sent over an insecure connection.

I dug on the situation and found that because I was using Google Analytics, the <script> URL is HTTP under the SSL area. To get it working under SSL areas just change the URL:

Under SSL: <script src="https://ssl.google-analytics.com/urchin.js" ...

Out of SSL: <script src="http://www.google-analytics.com/urchin.js" ...

solved :-)