Recently my monitor, Acer GN276HL, has had some very peculiar looking black, but thin, bars appearing on the sides and one horizontally at the bottom. I did the usual, check resolution, restart pc, different port, etc. None of these have fixed it. Its kinda odd because they all popped up at around the same time. The monitor sees daily use, 8-10 hours a day, for the past 3 years. I don't know if this is a signal my monitor is dying or something else is up. I know for a fact it isn't my PC since i tested it out with my PS4, using a different cable and port, and the problem persists.