So my friend is having a problem with his external monitor. He bought a MDP to DVI adapter from eBay (non-Apple) but there is something wrong with something. When he connects it, the monitor stays black but when we tried iChat screen sharing, I could see the screen and fully use it (move windows there etc) but he couldn't even see it as the monitor was black. The monitor is 15" or 19" Acer and he has 15" MBP. We also tried connecting it to another display but no better results and we tried another cable as well. So, anybody have an idea? I think it could be the adapter but why can I still see it but he cannot? P.S. He (JoelKelly) asked me to make this thread because he had to go out so he'll be participating and maybe correcting my post when he gets back.