Lillian,
It is possible that you need to perform a screen calibration. First, make sure that you have removed the plastic protective sheet from the screen. This sometimes is mistake for a screen protector, it's just for shipping reasons.
Next. Power the iFly 720 on and touch the following sequence.
Setup - > (Screen Icon w/Arrow) -> Yes.
Then you will need to use a Stylus or finer object that won't damage the screen, maybe a toothpick or pen cap... Touch and hold each + on the screen and hold for a second or so until it moves. Repeat this for one time around the screen. Try and hold steady and not move on the +.
It should prompt you to tap the screen or wait for the setting to be saved.
Note: If it keeps going around, give us a call in the morning. I hope this helps and thanks for your business and support.