Just so it's a bit more clear on what happens when I attempt to run a game...
I start the game, it opens the game but at a very low resolution, game screen just sort of flickers not allowing me to do anything, I end up ctrl-alt-del out of it and the resolution of my desktop is also set to it's lowest resolution (640 x 480 or whatever it is).
I can then change it through the display properties again back to it's native but if I start the game again the same thing happens. Just to clarify it's not just one game it's all games I try to play.