I've just added a second monitor (Dell S2330MX) to my iMac running Lion. The monitors are connected but I'm confused about how to operate them independently. I can mirror the monitors but that isn't what I want to do. Right now I'm working on the iMac and the second monitor is displaying a screen saver. 1. Can I have an internet connection (Firefox) showing on one monitor while I'm working in Word on the other? How do I do this? 2. I do a lot of editing, sometimes with multiple documents. I use Word for Mac. Can I have one document showing on one monitor and another document on the main monitor? Can I cut and paste between the two? 3. Do I need an app? if so, which one?