I'm working with a Dell Xps M1530 that I was told had a black screen issue. I have booted and find the screen comes up normal except at the bottom. Along the bottom, the screen shows rays of light extending upward. As you can tell the system is Win 7 Prof. I am wondering if replacing the inverter should take care of this or would the screen be necessary to correct the problem? I believe the inverter is failing when it gets hot, causing the black screen issue and the light ray appearance may be related to it as well but I don't want to replace the one item and need two. I also don't want money to be spent if it isn't needed. I tried to attach a photo but at 1.87mb, it is too large.