I had an HTC Wildfire phone which I stood on and broke the screen. I then sold it as spares because it wouldn't turn on and bought another one. When I went onto my Market account I noticed my new one is there and so is the one I sold, both registered to my Google mail address, and there is recent activity on both of them. I could not reset the old one to factory settings before I sold it because it wouldn't turn on. Is there a way I can unlink the old one from my account? Its beginning to worry me that someone else is using it through my Google mail account .