I installed ProXPN on my Mac and successfully used it. It installs an icon in the menu bar which you can use to enable and disable the application. I was messing around with the settings and clicked on the option which said something like "show icon near spotlight icon in the menu bar". After restarting my computer, I no longer see the icon in the menu bar. When I try to launch the application from my Applications folder, it doesn't seem like it's doing anything. 

How can I access the program or its settings?