Do you have a LCD monitor that turns on but has no picture? Does it display for only a few seconds than go blank, or maybe it just turns off completely? I've been seeing this problem more and more and I find myself doing the same repair over and over again. Thats right, I'm talking about the power inverter. The power inverter is a power supply that takes the low voltage that runs all the logic and steps it up to around 600 to 800 volts with an even higher initial start voltage. It does that in order to run a cold cathode flourescent lamp (CCFL) that illuminates the LCD panel itself. These inverters seem to be a weak point in LCD screens and my experience is that they fail most of the time because the electrolytic capacitors failed, or filter caps. There are usually 2 or 4 caps that range in value between 220uf to 1000uf and I've just made a habit of changing them. If you're failry proficient with electronics you might save yourself a lot of grief by changing these first. They're usually pretty easy to spot because they'll be around the input side of the inverter...