Just updated my firmware and am trying line x5. I can get an almost perfect picture if I set the mode to 1920×1200 (although my display is 1920×1080). I have H.active set to 348 (native Genesis width plus the overscan area) and this appears correctly on my screen, but I can’t find the H.samplerate sweet spot at all. I can’t make heads or tails of those spreadsheets and I don’t otherwise know how to calculate what these values should be. My monitor is an AOC G2460PF.