I got a popup offering me a 7-day free trial of SecureLine VPN on my MacBook running OSX 10.10.3. I installed it, and I see it in System Preferences Network. However, if I go to a website which displays my IP, I still see my IP. How do I use SecureLine VPN to preserve my privacy on Mac OSX? I'm running free Avast which seems to be the only option available for Mac OSX. I have a premier license on my Windows laptop, but I no longer use that.