Authorize.net and serial membership - do they work together?

Is it true that authorize.net and membership do NOT work together to allow serial membership/recurring billing? In auth.net there is a place where I can enable recurring billing.

It had been mentioned that they may NOT work together, is this true, or is it a matter of making sure it's enables on the auth.net side? if so I'll need to switch to a gateway that does allow it. I'm still in test mode over there so I can;t tell if it's not working b/c it doesn't work period or b/c something is not set up correctly/activated.