I have some serious trouble here. My Hero is going haywire. I was trying to download some apps from the market today and they don't want to start. So I rebooted my phone to see if it made any difference. Now when it starts up I get error messages that the com.android.phone and a few others are not working and have to force a close. I have no service either. All the installed apps and components are working but not phone itself. I am with Cellular South in Mississippi and my wife has a Hero also which is working normally so I know it's not a network issue. Please help.