Q: I have just upgraded to Mountain Lion and have read with interest your description about FaceTime. My problem is that on my wife’s iMac I first configured FaceTime with my own ID and now I would like to delete it and setup FaceTime with her Apple ID. However, it seems impossible to delete the account I already created on her iMac and the machine is not allowing me to add her mail address to my Apple ID either. In your article you write that…