How do you change the account that the app market uses? I got the phone from my dad who hasn't used in a year and a half, and his gmail account is still there and I don't have the password. I tried removing the account but the droid says:
"This account is required by some applications. You can only remove it by resetting the phone to factory defaults..."
"This account is required by some applications. You can only remove it by resetting the phone to factory defaults..."