Hi, i have a problem with my ZTE Racer my home screen has gone all i get is a black screen i can recieve calls and text messages and still have a notification bar. i also still have my unlock screen so its when i unlock it that the problem starts, i can access the ftm screen and the vol+ screen, when i hold the home button down for recent apps all i get is Home Helper (set as default) other than that i can not do anything else with it, Thanks