Troubleshoot Black Laptop Monitor     I have a Toshiba A55-S106 laptop; the monitor is black, but I can see everything with a flashlight. I put in a new inverter, same problem. Plugged into neighbor's desktop monitor and saw everything fine. So, do I need a whole new monitor (LCD?), a backlight... what exactly?  And where is the CHEAPEST place online to buy computer parts, preferably with free S&H? 
Also, is an online video available to show how to fix whatever I need to fix? 
I know I'm asking for a lot, but asking is how we learn.      
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