Ok so i have a 8800 from at&t and the trackball quite working, i replaced the trackball and the keypad circuit board which contains the magnetic sensors for the trackball and still nothing. I have tried the trackball in my wifes curve and it works great. Is it possible that the trackball feature is turned off in the phone and if so is there a way to restore factory settings without the use of the trackball. Any help would be appreciated.

How did you replace the trackball? What kind did you use?

Replaced the trackball and the keyboard circuit with new ones from a reputable vendor that i have used before. Also as i noted the trackball works fine in my wifes curve, and the trackball from her phone doesnt work in the 8800 either