I noticed a lot of other people having problems with the hardware itself, or the keyboard issues in lighting but my problem is different than anything I was able to find. When I press the F6 button to make the keyboard brighter (I had darkened it to zero while running on battery a little while ago today) I get the watermark like picture that would normally tell me how bright the light was. But now all I get is the bar at zero, while the picture is the line with dashes out of it (if it were at zero it would just be the line) and then under the scale telling you how bright it is, theres a circle with a backslash thorough it, as though its saying the operation is not possible. Please help me!!!