hi there! i have a modded xbox which was working fine until recently when it was unable to boot up properly. with the mod on, the xbox and evox logo would come on for a moment before rebooting and the cycle keeps repeating itself. when attmepting to boot up without the mod, i would get an error msg 21. in addition, there is an alternating red/green flashing lite. i have downloaded slayer 2.7 and tried to get it installed. with the mod on, shortly after the xbox logo shows, "slayer 2.7" would appear below the logo but then after that the console reboots again as above. obviously in the unmodded state, the disk cannot be read. so somehow, i cannot get the auto installer to start. any help in resolving this issue will be most appreciated. many thanks in advance!