I have started following this guide and have got my vertical Total pixels down to 1090. My question is, on the next step when I increase the Horizontal Total pixels do I keep the vertical at 1090 or do I put it back to its default setting 1125? I assume that I should leave it at the low setting but want to double check before I continue. Thanks in advance! Update: I kept the vertical setting low and the final figures were: 2352 horizontal and 1090 vertical. This would make the final resolution 2352x1323. Have I done this correctly? I also tried the resolution at 2560x1440 and that works fine anyway so I am slightly confused!