Issue with certain mods using CSM.

Hello everybody, I believe i've posted in the correct place.

So on getting my new PC build finished (NVIDIA 1070 6gb, 8gb RAM), I've got GP4 working... *mostly* ... I've downloaded the GP4 Megapack from GP4 FOrever and some other CSM mods not from there, and i've noticed a problem. Certain mods including the Megapack one have a CSM setting for changing / multiple adjustable screen resolution options.... any mods which have this setting, will not load and I just get a black screen, even if I pick the identical resolution to my TV i'm using and my PC settings (1920x1080)...

I'd guess it's maybe trying to adjust the settings in f1graphics ? Really at a loss what to do and it's restricting what I can play quite considerably.

Thanks, Furi