When trying to view your EZ IP system make sure your Java is updated. You should be prompted to update to the newest version of Java once you log into the NVR.
Supported Versions for the EZ IP
Web Safari v6.1
10.6 MAC OS X 10.7 MAC OS X 10.8 x 10.9
Web Safari v7.0
10.6 MAC OS X 10.7 MAC OS X 10.8 x 10.9