X-ecutor 2.2 Pro bios flashing problem

[gwood]

Yes, I'm using the external programmer that came with the 2.2 pro. What's confusing me is that I get a "Device programmed and Verified" box every time. I also downloaded x2-4977.bin and x2.4977_2.bin from different sites and neither works.
It seems like the XBox isn't seeing the new bios at all. I'm not the best tech in the world, so I used the headerpin install. Could I have broken a trace or something?