Hi all, wonder if anyone can help diagnose my issue. My powerbook g4's screen won't work - well it is working because the backlights come on but nothing displays on the screen. I think it's the LVDS cable but I'd like a second opinion; What happens is if I turn the Mac on the screen backlights come on but the screen is still black almost as if it's turned off. I've verified that it isn't the brightness control, after waiting for the Mac to boot into OS X I can control the screens brightness via the keyboard controls and can see the backlight dimming or brightening but the screen remains black. The display plugs into the logic board in two different places: In the picture above, that cable on the left hand side of the powerbook which the manual says it's the inverter cable. And; This one on the right hand side, called the LVDS cable apparently (note I took these pictures from the apple manual not my powerbook but they are identical, except my logicboard is green, not red). I did some tests and when the I unplug the LVDS cable and turn the Mac on the screen lights up grey like it normally should do but, stays that way (kind of expected given the cable is unplugged). I reckon because it does this and doesn't go black like when the lvds cable is plugged in, that the actual LCD panel is OK and a it isn't anything to do with the inverter board due to the backlights working. So I've narrowed it down to something to do with the LVDS cable, but I'm not sure. I mean, it could be the cable, it could be the board it plugs into on the LCD panel, or it could be the logic board connector? Does anyone have any clues as to what might cause the screen to be black (ie if damaged lvds cable causes this exact symptom, or perhaps it's something else that's related to the lvds cable). Thanks!