Hi Everyone, My faithful dev machine (a 15" mid 2010 MBP) developed a display problem this week and I've been having to run it in clamshell mode using an external display :-( The machine boots with chime and everything, but after a brief flash of content the screen blanks out and stays that way. If I boot it with the lid open and the external display attached I can move the mouse pointer from the dead screen to external and back which seems to indicate that the boot was successful and its just the display thats the issue. I've had the back plate off and confirmed that the display cable is properly attached at the logic board end, but from what I've read elsewhere the problem could be a damaged display cable, a faulty display screen, or some other component board. I'd hate to have to replace all three! is there anything I can do to Diagnose where the issue is? Thanks In Advance!