old thread I know.
I stumble across it and though I'd put some info here.
Seem to have solved it.
windows 8 whql
disable csm
no clover driver CmsVideoDxe-64
did apply nvram in clover configurtaor (unsure if this is important or not)
Typed in my res in clover configurator 1920x1200
no load vbios or edid in clover configurator
Started working once I did "disable fullscreen logo show" in the bios.