Apparently when you install the Matrix mod using Header Pins, the Alignment portion of the installation is a bit different. Rather than getting a flashing green LED, you will get 1 green flash, then red flashes. I experienced this last night and tried for a long time to figure out how I could not be aligned properly when directly connected to the LPCs, but after switching to mode4 (I don't want to mess with opening up the xbox every time I flash) it fired right up with no problems. Today I saw a post from someone else stating that this was how the Matrix behaved on the v1.1 boards when you try to align it, but I have a v1.0 board. When I originally installed the Matrix the "solderless" <laugh> way, it did eventually give me flashing green, but for some reason (I have no idea) if you connect with Pin Headers, you get 1 green, then all reds. Just an FYI if anyone else, like me, was pulling out your hair trying to align something that is directly connected. Did you experience this too Sheriff??