Carpe Lux Seize the Light

I've had my Pentax K10D for just under two months now and shot approx 4400 images with it. I saw a bit of vertical banding in the darkness on a moonshot once as I accidentally pushed the levels way too high in PP, that was it. Since then I've updated the firmware to 1.10 and I was pretty firm in my opinion that those who had visible banding now either had faulty cameras, did something really funky to them, or both. Another issue on the dpreview forums has been the appearance of crosshatch, or horizontal banding when the Pentax D-BG2 battery grip was installed.