if you dont already have Evox installed on ur xbox, then the m7 bios will load the m$ dash. just put the slayers disk in and reboot the m7 bios and the installer should load. after installing Evox, the m7 bios will load the Evox dash on boot.
If you already have Evox installed then it sounds like the m7 bios cannot detect Evox. try another bios, or reinstall evox
