Originally Posted by Armedblade
...and without those settings, I am guessing that it possibly would not validate your 1080i (540 upconvert) resolution. I'm also wondering without those options does nvidia invalidate it because the driver computes the refresh rate at 120hz.
Could you confirm/deny that, if only for the sake of clarifying the problem at hand?
I seem to recall that you are correct. My combination of options are all necessary to get the modes to validate, except for those that exclude modes that I don't want.
It's not always easy to get time on the TV to play around with these settings, so I can't test specifics right now.