I just successfully installed a 2.6ce xecuter chip in a v1.6b xbox (MFG 11-2004). I flashed m8plus on bank 2 and I have flashbios 3.0.3 remaining on bank 1. I can backup movies to the hard drive and view them. However, I can burn games to the hard drive successfully but all of them don't load. It will go to the the now loading screen then return to the dashboard without loading the game. Some games will load and some won't. I don't know if there is something I'm missing or maybe something I overlooked on the install. Any help would be appreciated! 