I'm using a Matrix chip with Xecuter2 build 4976.02 and Tao Feng still doesn't boot... It gets to the EvolutionX loading screen then it just sits there. I'm having touble with Vexx too. That one the game gets past the EvolutionX screen but it just goes black and nothing happens.
I don't use any program to make ISO's from the original, I just login to the Xbox with FlashFXP, transfer the game to my PC, then back to the Xbox for testing.
ThermalCore