Custom Resolution Utility (CRU)

[ToastyX]

That's normal. If you use the NVIDIA control panel to add a refresh rate, it will be added as a custom resolution, so you have to select the custom resolution to set 32-bit color. Using the pixel clock slider is the same as using the NVIDIA control panel, so you don't need to use both.

If you delete the custom resolutions from the NVIDIA control panel and use CRU by itself, the refresh rates will be added as part of the native resolution.