Well, it's either the videocard or the monitor/cable.
So you try another monitor/cable on this PC and this monitor/cable on another PC and then you'll know what to repair or replace. it's as simple as that.
But, given the error message you quote, my guess is that a video card is the solution.
Kees
today at lunch i left to get something to eat, when i got back the entire screen was brown and nothing i did could remove it, i restarted and a while later the screen started "flickering" going bacl for a few seconds then returning to normal with an alert from windows in the bottom right corner, something about a nvidia graphics error, never had time to read it properly, after a few instances of going in and out of black the screen turned completly white. later after i'd been playing for a few hours i turn of the game, open google chrome and the screen goes complety blue this time, i have no idea what is causing this, all the wires seem intact so i doubt it is a problem with them , my drivers are updated too.
My rig
GeForce GTX 760
Intel Core i5-4670 cpu 340GHz
8 gb ram
and i am running windows 10 as OS

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic