I juz figured this out.

The NV*_Mode_Delta values in the new INF that came wif 27.42 seems to be exception to a certain set of resolutions and refreshes :smile:

For the older detonators, the values would be NV*_Mode which is actually the res and refreshes supported, this time, it will instead be exceptions

So this is what I did the the 27.42 INF file:-

My aim is to exclude all resolutions lower than 100Hz in 640x480, 800x600 and 1024x768

[QUOTE]HKR,, NV15_Modes_Delta, %REG_SZ%, "S 640,480,0,-85;800,600,-,-85;1024,768,-,-85;1600,900,-16,120;1600,900,32,100-;1600,1024,-16,120;1600,1024,32,100-;1600,1200,-16,120;1600,1200,32,100-;1920,1080,-16,120;1920,1 080,32,85-;1920,1200,-16,100-;1920,1200,32,72-;1920,1440,-16,85-;1920,1440,32,70-;2048,1536,-16,70-;2048,1536,32,-"[QUOTE]

640,480,0,-85;800,600,-,-85;1024,768,-,-85 is what I added to the string
640,480,-,-85 means to exclude all refresh 85 and lower from 640x480x(any colour depth)
the "-" means to exclude the refreshes from all colour depths
similarly, 800,600,-,-85 is to exclude all refresh 85 and lower from 800x600

:smile:
Hope this helps