I tried to locate my iPad via iCloud. The online service worked nicely and I was able to follow my son coming home all right. I used the sound feature provided online and now my iPad is frozen with the 'Find my iPad-alarm' dialogue button. The OK-button can be pushed but the dialogue won't disappear no matter how many times I tap the OK. Any good tips what to do? Is resetting the pad via iTunes the only option? The pad's running iOS6.