My Dell 2007fp monitor was failing and dell sent me a new monitor. That one had a lot of dead pixels and I called and complained and have since received another monitor. This new one is a refurbished 2007fp monitor and it arrived today.  This  monitor is great, no dead pixels, over all great. But I noticed a characteristic tonight that I’d never seen before. On grey backgrounds and even tan backgrounds the monitor seems to have this very faint flicker/shimmering effect. This is my second replacement and I was all set to be happy with it, but I’m not sure anymore. Does anyone know what this is or if there is something I can do to fix it. Is this monitor on the brink of failing too? My original monitor did not do this nor did the first replacement. Thanks!