nighcaster iso problem

[mont@]

Hello...
before all the things sorry for my english!!!!!!!

Now the problem:

i have the nighcaster's iso ntsc a modded xbox with evox dashboard inside.....when i upload files of iso in hdd with flashfxp no problem, also when i reboot my xbox and by the menu i select to start nigcater...then the loading page is on my tv and after 2 seconds it stops to load and i must reboot, without play any games..
where could be problems????

sorry another time, but try to re: to my post with a "school english" or i will not able to understand....
thanks a lot