Hello, when i power up my Dell 1525, all I get is a dark gray screen (very little light), no images, and after the Windows sound, a black vertical line forms on the right side (faint) about a half inch wide. I've replaced the LCD screen and the Inverter, but the same thing happens. If I hook up an external monitor, the display works fine. Anyone have an idea what is wrong? Is it a bad lcd cable or something with the motherboard?