It will only scroll left, right, and up, which prevents me from accessing my applications. This just started a couple of hours ago. 8830 World Edition. I got back to the hotel, and wanted to take a short nap before going to dinner, so I set my alarm to 18:30. Worked like a charm. Tried to set it back to 04:30, and couldn't scroll down to change the alarm time. Then I discovered that it won't scroll down at all. Makes it impossible to read emails, text messages, etc, because it's stuck on today's date at the top of the screen. Any suggestions? I don't have a small torx screwdriver to open the cover. That's on my desk at home, so I can't open it to investigate, and I doubt I can find a t-driver in this podunk town. Does anyone know a way to navigate the screens without the track ball?