ok so i reallllllly realllllllly want to go back to froyo, i am currently running gingerbread and hate it, so slow. i also want to downgrade due to that i want to root my desire z using VISIONary temp option. I DO NOT WANT TO PERMANTLY ROOT MY PHONE. i want to temproot my phone but when i use visionary, i run it and the screen stays black and does not continue or reboot. and yes i have debugging off. i need help in these issues!