Hi -- I have a 30' cinema display circa 2005. it's been great no problems except i had to replace the big power block thing once a year after I got it. I've been running it connected to my G4 15" powerbook. I just bought a new macbook pro 13"; bought the dual output mini dvi thing, and the display works. However, I have been noticing intermittent shimmering vertical linear lines occasionanally that seem to be lime green or yellow. They are not in the same place all the time, though usually on the left, and they only show up sometimes against a darker type background. The purple leopard background is one background where I see them.... it does not matter if i jiggle the connector...maybe I need a new mini-DVI thingy? sound familiar?