The control panel in the top left of the screen was the only part of the interface which wasn't part of the game world.
"Refresh" was a last resort - it hard-reloaded the window. The game had a habit of hanging when you tried to do too much at once, so refreshing was the only was out.
"Report a Bug" popped up a window which allowed you to send an email to Eric.
"Save & Exit" was the safe exit procedure - if you just closed the window then the game would sometimes lose your progress up to that point, or do weird stuff.
The logo itself was a link to the main GNE website.