Hi Greg
Since I opened this thread I have installed Page Builder on another domain and its working perfectly over on that one, so it’s has to be another plugin.
I installed a few, but not sure which one has affected it:
Countdown Clock
Easy Set Favicon
Comprehensive Google Map Plugin
Black Studio TinyMCE Widget (Doubt it’s that as you recommended it)
Per Page Sidebar Blocks
Styles
Exclude Pages from Navigation
Custom Widget Area (Could it be this??)
I tried the following
Closed all browsers and reopened
Cleared the browser history (cache)
Viewed the website via IE, Firefox and Chrome
Turned laptop on and off (I was feeling desperate)
I tried uninstalling and reinstalling Page Builder (no difference)
Now I am deleting as many plugins as possible.
Thanks very much.