Aura HD Main Menu Disappeared after Nickel Install

Hi there,

Just wondering if anyone can offer tips on how to restore the top left main menu after installing Nickel, Koreader.

I have a bottom right Nickel Menu. But the old Kobo Main Menu has disappeared from the top left. I have uninstalled Nickel once but that didn't restore the top left main menu. So I installed it again, but still hasn't returned.

I'd appreciate some tips on fixing this.

thanks,

James