If prompted by Internet Explorer with a message like "To help protect your security, Internet Explorer has restricted this file from showing active content that could access your computer" click the message "Click here for options..." and select "Allow Blocked Content". A dialog box will appear asking for confirmation that you wish to run active content on your machine, please select 'Yes'.
Alternatively, you can configure your browser to always allow active content without taking any great risk. Here's a site I found (not mine) that explains it all clearly: Allowing Blocked Content with Internet Explorer.
Or you can switch to the free Firefox Browser (my personal recommendation) and avoid a lot of these hassles entirely.
Peace be with you -- Shaffee Howard Ballinger, webmaster