I've just bought a 17" iMac. When the screen is black or showing a dark colour, two pixels are bright blue. Trivial I know, but becoming increasingly more annoying to me. The shop said 4 or more pixels out is not acceptable so I am within limits. Does this sound right? and should I just get a life and live with it? Otherwise it's a stunning machine for this new mac convertee. Laptop PC now in the bin. Thanks.