Thought this tip which has just arrived might be useful.

"Top tips on making the most of Essex Archives Online
Do you use our online catalogue, Essex Archives Online (previously known as Seax)? The User Guides section of the site has lots of helpful tips on finding your way through EAO and making the most of it, including where you can now find our parish registers page. Some people have reported not being able to see the main menu bar at the top of the site so we thought we would share the solution to this. If the page is zoomed in beyond 100%, the top menu will collapse into an icon that looks like a little box with three horizontal lines across it. Simply click on this box to open up the menu – it will look like the image below. This will also be what you see if you use the site on a mobile or tablet."

The "image below" is of the following menu:-

HOME
ADVANCED SEARCH
SUBSCRIPTION SERVICE
USER GUIDES
PARISH REGISTERS
LOGIN/REGISTER