Ever since I got my (used) RX350 a few years ago, it has had issues with the backlight randomly flickering or going out entirely. When I first acquired it, the backlight didn't work at all. I then left it unplugged for a few months and just recently hooked it up again. It was at this point that the backlight came on but started fluctuating in brightness. It's not a big problem, but I am curious as to what could be causing it. Has anyone else encountered this problem?