I just wanted to say what a phenomenal product the MK2 is. I installed earlier this week and was using a VGA adapter and I was getting artifacts/bars, but then I tried DVI and HDMI and the picture was crystal clear. Never thought I see the day when I would be able to use 1024x768 screen on a 1200.
I used it for about 4 hours straight, playing games and demos and had no problems with heat and gfx corruption. My motherboard revision is 1D and I have an ACA1231 installed. I do however, have a a non stock A500 power supply by Microline.
I received my second MK2 today and will be installing in my other 1200 over the weekend. This one has an ACA 1200/56 and an a500 power adapter.