[MartinMcGirk]

As I understand it (by reading up on the subject over the last few months - I'm no games professional), the DK2 uses one 1080p screen split across both eyes, but the sticking point is that it has to render each frame twice from slightly different positions in order to get the image right for each eye. Add to this that the DK2 needs to run at 75 frames a second for the experience to smooth, it means that your computer needs to be effectively running the game or demo at 150fps. It also has to have enough in the tank left over to power your computer monitor.

It's a great product though. If you can afford to upgrade your computer to accommodate it then I can't recommend the experience highly enough. Money well spent in my opinion.