Railworks America

So I have a two monitor setup. Monitor 2 is going black for a few seconds every now and then. Changes video card out. Problem not solved. Power supply? Or any other suggestions.

Check or replace cable monitor to computer. Make sure the connections are tight. I had a bad cable cause this issue.

Jeez I can't believe it was something that simple but it looks like that was it. When I topped it forward to check the cable it went black. Time will tell but I think you nailed it.