i bought the atrix 10 days back from at&t store. so far it has been working great. but in the last couple of days i noticed that the back cover is not sitting tightly on one side and is giving a squeaky sound whenever i pick my phone. it is quite annoying and to me looked like a build quality issue. i took the phone to the at&t store and the rep there did not even want to listen to me. i asked them to replace the back cover and the store manager told me that there is nothing wrong with the operation of the phone itself and can't help me in anyway. anybody else faced a similar issue? does motorola sell the back cover separately? please advise..