The gibberish is displayed within Dreamweaver in design view. Usually the page is displayed showing the HTML editor logo. When I select this, I can click on edit in the properties display window and do the changes I require.
At the moment, all I see in design view, is the attached text file in my previous posting.
Find attached the file: content_update_ContentValue1.php. This is the page that displays the gibberish in design view.
Thanks for your help.