Just got an iPad 2 and apple tv. Can't get iPad images on apple tv
Just got an apple tv and ipad2. I can't get iPad onto tv screen
iPad 2
First airplay has to be enabled on the ATV via settings. iPad 2 needs to be on the same network. Then you need to double tap the home button (or swipe up), swipe in a left to right motion and bring up the volume/brightness controls along with airplay. Then toggle ON mirroring.
See here for more info