I finally got around to calling Apple about the fact that the buttons on our 30" ACD don't work. Basically the power button only works sometimes, and the brightness controls have never worked at all. They've classed it as DOA and now I guess I have to wait for them to ring me and arrange collection. Such a pain! Especially given that the LCD panel itself is flawless! Gutted. So, out of a Mac mini, a 23" ACD and a 30" ACD, both the Mac mini and 30" ACD have been DOA and needed replacement. Don't hate me, but in all the years of buying many, many Dell products not a single one has been DOA. I'm extremely unimpressed.