well i went over to my friends house yesterday and tried to install it on his computer and it did the same thinkg but i dont have any scratches on the disk... i guess ill just have to contact microsoft and see what we can do about it. thanks
*EDIT* thanks for your help your right it was a scratch thank god for CD repair kits

well time to download halo CE and start modding.PEACE
also could a mod lock this thread thanks.