Joined: 8-April 04
Member No.: 113003
It sounds like it is the bios. Look here and check your bios. It says bios hack. You may not have patched it with the IGR before you flashed the bios. The Halo Edition xbox is I believe v1.4. I would suggest updating your bios. X2 5035 is a good one but I would find out what modchip you have and make sure there are no compatibility issues.