I just bought my new MDP to DVI adaptor and I couldn't be happier. Im running my macbook in clamshell mode and Ive watched an HD movie At 1080P, played age of empires 3 at 1920 x 1200, at very high settings, without any stuttering what so ever, and even browsing the internet is very pleasing. Everyone said that it would be hard to browse the web and do much else than watch movies with a 52" tv but In all honesty its pretty much just as good as being on my macbook, except of course that it is a bit nicer to have all the added real estate. All-in- all im very very pleased with this adaptor and Im very glad I went out and purchased it.