alright, I've done everything I could think of. I have a MacBook 3,1 that used to connect just fine to my lg w2361v 23" monitor just fine until recently. Now it flashes the screen, allows me to move my cursor over to where the monitor should be, but I'm staring into a sea of blackness. In System Preferences, the computer recognizes there is a display, allows me to hit "gather windows" and pull in the other window from the external monitor. Detect Display does nothing and I've tried every possible screen resolution and setting with no avail. I'm really hoping someone here can at least point me in the right direction, because 2+ hours of googling has given me nothing.