Same for me regarding the bug of the CM. I installed Windows, and then started installing the drivers supplied on the CD, and the first reboot, black screen, no POST, no beep but the beautiful VGA port LED that lights up and indicates that there is a problem.
I lost some time testing without CG, with another, to ultimately return the CM where I'd buy it, which will cost me round.
I also read on a forum that there were 6% returns, I wonder whence can this figure. This being for CM at that price, I think it is clearly abusive.
Anyway, I'll try a Gigabyte.