I've had my htc hero from about 6 months. Has worked great up until a few days ago. The touch screen stopped working, then it worked again, then not again. I took it to the sprint repair center. There they advised me that I should do a hard reset and that should fix it... well... it didn't. At least before I did the hard reset, I could still make it function, at least the phone worked (not using the touch screen). Now after that reset, nothing works. When I just use the roller ball to navigate, to all applications, then select phone... then it gives me an error code... "Sorry, The process android.process.acore has stopped unexpectedly. Please try again." Anyone have any suggestions?