Thanks, that worked.  I use predominantly Firefox,  I check consistency with IE.  Now I know that Flash Player works on the browser used to download.  It had been loaded with Firefox therefore not seen by IE.

I have a set of galleries on a web site, when viewed with Firefox I see only full size pictures, this is as per setup.  When viewed in IE I only see the thumbnails displayed.  To change the display to a full size picture I have to double click on a thumbnail. The web site is "" and was created using MS Expressions Web 4.