I have a Toshiba Satellite 3000, and I have a problem with the display.

When I boot, the LCD screen remains off. No light at all. Then, if I boot while connecting an external monitor, the monitor lights up, but the LCD does not.

However, I can switch to the LCD screen by toggling the external monitor/LCD function (FN + F5 for the toshiba), so the LCD screen is working fine. This cannot be done if I boot in safe mode, though (HUH?)

Help, please?