Topic: Workflow / Color shows no video display in Viewer

Everything was working fine for quite a while.
I don’t know anything really about a gfx card.
I was thinking that maybe there was some software conflict.
Just randomly it was working one day and then when I reopened the program there was no picture again.

Topic: Workflow / Color shows no video display in Viewer

Color was working fine but suddenly one day i sent some footage to it and can now not view video in the viewer above the waveforms. Tried adjusting different settings but can not seem to figure the problem out.

I can view video in the color grading, and so forth, frames but not viewer unless I make extreme adjustments where only the brightest areas show up and in two bit color.

WHAT DO I DO????