Samsung 120Hz LCD

Hi guys,
I am using samsung 120hz LCD with nVIDIA quadro4600 with Gsync for my project, the problem is that i am unable to create custom resoultion usig nVIDIA control panel for samsung LCD. It says “no optimium mode recommnded mode 1680x1050”
I want to change pixel clock rate & resfresh rate listed under the timing tab of Create Custom Resolution wizard.

any help will be much appreciated. thanks

Not a GL problem.

Your samsung monitor supports only the few popular resolutions and refresh-rates; just like all other samsung monitors (afaik).

Thanks llian, do you know about any other monitor that can run at 120hz and can also support custom resolution.

Well that makes it a bit of a chocolate teaspoon then.