Touch the Screen to get the Options Menu. In there is a Traffic Information option, possibly in the "More Options" area. What version of software are you running? You can go to Menu, About, Version and Contact to see this.
Earlier versions with ADS-B traffic only showed traffic once within an alert area, based on Dist, Alt and Impact Time. If the traffic was not relevant, we didn't show it on screen, once closer and within a altitude threshold, we popped a alert and showed the traffic.
New software versions show the traffic all the time, regardless of dist, time or altitude. We just use those for the Alerts.