Try downloading a free app. If you're going to create a new Apple ID then you have to download a free app, from your computers iTunes. Then create a new ID and the 'None' option should be there. Hope this helped :)
I have the same problem.....apparently is a bad battery or bad dock connector. I haven't had the time to try and fix it. So what I suggest is take your iPhone apart and reassemble it, to make sure everything is as it should be!