How can I get the screen to light back up. I'm forced to use a flashlight to see anything

The issue if your light bulb behind the LCD matrix is burnt out you need to replace them. This is common for these monitors. The bulbs simply snap off an on by a connector to the high voltage power supply. When you open the monitor up, you will see he board with HV supply on it Trace the two (red an white) wires to the backlight (bulbs) and verify by looking at their ends looking for black discolor at he ends of the bulb (This means the interior of the bulb is carbonizing = shorting out). Most times the monitor will shut down into orange light, but sometimes it will not ignite the fluorescent bulb)(s).

You may have to replace the screen if you can see things on the screen but have to use a flashlight this would be something I would change out. If you want to go deeper into it plug the monitor into another working computer and see if it works fine if that is the case then you are dealing with a video card issue. Replace the video card and go from there it should work fine from that fix. Thanks for using FixYa! do not forget to vote for me. John