Battery cover on Logitech MX620

[judasmachine]

How do I get the battery cover off? I cannot for the life of me figure it out. It feels like I am going to break the whole mouse. Anyone have any tips? Is there some secret to it?

 

[judasmachine]

I got it. The thing only has a slight indention with which to get any grip. Aside from that it's completely slick. You have to press and slide, and pray it doesn't break.

Sorry for wasting space here. It was driving me insane, and I thought I was missing some obvious trick.