I've had the same problem with the trackball icon freezing on the screen as many others have via other forums. I've also had the phone freeze up for about 5 seconds - pressing any button will not do anything - then it suddenly starts working. My reboot time has gone from about 4 minutes to almost 10. Some have had reduced reboots by removing Google Maps - others have no problems with it. The back of the phone gets pretty hot (below battery) when used for more than 5 minutes - possibly the main processor? There also seems to be more problems with phones built south of the border than north of it. Any one else on here having these problems/issues? And yes, I've adjusted my trackball sensitivity several times - I think it may be more of an OS issue.
First off create custom profiles for ringtones and alerts, as when you make a change it only effects the normal setting.
yes I had those issues I called VZ and had mine replaced. One thing you could try is wiping and reloading the OS, which I have heard helps. I would just call them and get it replaced.