Just bought an Aldi 9.7" tablet. Installed Dolphin Browser. Cannot get gestures to work meaning it is impossible to navigate (back/forward etc).

eg. after surfing a bit I then trace a "<" on the screen. Nothing happens, other than the display scrolls up and down a bit as I do it. What am I missing?

I emailed support and they replied, quote:

Can you see the suggestion "G" on gesture page?
You need follow it first to start gesture feature. So, have a try!

When I click on Help it says in two places that a G is for so what are they talking about?
I tried it anyway and it does nothing.