rachel, possibly a bad digitizer. Try to reset your device, to do this, press and hold the On/Off button for 30 seconds and release the button when your device begins to restart. Should that fail, replace the digitizer. Here is [http://www.youtube.com/watch?v=tdJUZl8TDNE|a video] that shows the display repair, [http://www.youtube.com/watch?v=AXDQQiNqs-g|and here] how to solder the digitizer if you do it separately. Hope this helps, good luck.