I have a flashed xbox 360 with a 74850C LITE ON that i flashed with i think ixtreme 5 a long time ago, and was using boot disk wave 4 to boot games. I recently put mortal kombat in and accidently updated the update the game comes with, i wasnt thinking (its been 6 months since i played my xbox) and now my xbox wont boot any burnt games, as i understand it, this new dashboard update flashes your custom firmware from your dvd drive? ok so as it stands, i dont have the equipment i used to originally flash my drive with custom firmware as it got lost. i also dont have a back up of my firmware and key etc asmy computer crashed and had to be formatted. what can i install and how can i do it to play burnt games on the latest xbox dashboard that came with mortal kombat?