I had heard about people having problems with their Blackberry Tour’ trackball. I have had the Tour for more than a month now and have not had any issues until today. This morning when I tried to use my phone the trackball would move vertically but would not move horizontally. I did a battery pull, cleaned the trackball with compressed air etc and still it is not working. Tomorrow I am taking it to the Sprint store. If any one know how to fix this issue, please feel free to post.