I just installed the X3 and 1959 bios into 3 xboxes. Two of the boxes we new 1.6s and never modified the other was a 1.1 with a 2.3 Executer chip. The two 1.6 boxes are doing great no problem. The 1.1 is another story. I've used the 1.1 with the 2.3 chip for a long time and had no problem, using XBMC as the dash and running Linux. Now with the X3 i find that the mac address keeps changing with every reboot. Ive used Configmagic-final to rewrite the mac back to the original and even tried to to change it on the fly, neither worked. Xboxdash, Evoxdash and Xbmc all show a different mac on every reboot, but when I use Configmagic-final it only shows the origianl mac or the changed mac even when the dash reports another. Ive moded 12 boxed in the last couple of years and this is the first problem I've had, could use some help. Is this a bios bug only showing up in older xboxs? Of course this would be my personal box that I hook to my network...what a pain not being able to use a static IP.