yeah, i see where your coming from
its just that the call "AvSetDisplayMode" sounds like its a proper call that the xbox needs to understand.
i belive that its there, i just dont think that how im opening it with IDA is the right way, or that the FLIRT file has it in there.
if anyoen ahs any experince in modifing xbox bioses, please pass on some info on how to open it properally.