My original Atrix and its replacement have had random rebooting issues. These are happening every couple of minutes. Often enough to make both phones inoperable. I have been offered to switch to different phone. I love the Atrix if it worked correctly. I would switch to an Atrix 2 if it doesn't have the same problem. Can someone advise me on this? What are there differences between the Atrix & Atrix 2?