Steps to turn off the Security Warning in IE6  (Internet Explorer - Version 6)

1. Tools > Internet Options

internet_options.jpg

2. Click on Security Tab

3. Highlight the "Internet" icon and then click "Custom Level"

4. Scroll through to the section called "Miscellaneous"

security_settings.jpg

5. Under the heading "Display Mixed Content" choose "enabled".

6. Click OK and then OK again and you should no longer get the annoying pop-up window.