Hi - I have a recently purchased Incredible (about 3 weeks) and within the last week the red earpiece on the phone has developed a very severe buzzing noise. Seems whomever I speak with can hear me fine, I just can't understand them. This hasn't been frequent but it is increasing. One day I had an ear shattering high-pitch noise that pretty much stopped all calls and I had to power down the phone. Could this be hardware or software related? Thanks!