Sorry if this has been discussed before, but I do not know what to do now. I replaced the stock HDD in my (chipped) 1.6 box with a new 160 GB WD drive and tried to format it. The problem is that the damned xbox just does not want to boot from the DVD drive. I tried Auto Installer Deluxe 3.0, tried the Evox boot disc but all I get is very nice error message telling me to get the box serviced (the error code is 13). I tried DVD-R, DVD+R and a couple of CD-RWs but none of them works. I tried to follow the guides here to the letter so at the moment I think I did everything properly. Any ideas how to solve this problem?