I had a similar problem using the X2 bios - does the game just hang at the "Loading Crimson Skies" screen?
from another post I made, on this subject:
Ok, so in the past two weeks I"ve switched from Mordens to the UDE using Idot's installer package (which worked brilliantly once I smoothed out the kinks in my xbox). Switched over to UnleashX. But this problem has occurred both under Mordens and the UDE, using 4979_67.bin and the hacked bios idots included.
For some reason Conflict: Desert Storm II won't load at all. I rented the game a couple of weeks ago and had been playing it and went to MXM to rip a copy. Ripped it, burned it, tried to play it off the hard drive, tried every permutation. Same result - it hangs at the loading screen leaving the dashboard.
Oddly enough, this also happens when using the original game if I used the hacked bios. And it still happens, even using a variant of said bios. Now today it also happened with Unreal: Championship. Same problem, I've only seen with these two games.
I figure it's got to be the bios refusing to load these games properly. Is there another, more stable bios I could load to play these? It's possible to load a custom bios from your dashboard to launch a specific game, right?
And has anyone else had this problem, or is there something seriously weird with my Xbox? Thanks in advance.
------
On a side note, tomorrow I'll try the M7 bios and see if it will paly these other games. I also love my IGR though, and would hate to lose it or have to give up UnleashX