I just started my computer up for the first time and it runs fine... but my moniter has a test screen on it, with the light blue block with RED|GREEN|BLUE on it that sais: "This moniter 'Is' working'. Please check your video cable or computer." So do I have to wait a while to get this to finish.. or what do I do? Ive already shut down my computer, and the moniter, and when I shut my computer down and keep the moniter on, the test is still going on.. So what can I do?