...vista. So I couldn,t find my cd rom? For some reason my computer crashed and it wanted me to reinstall windows vista. So I couldn,t find my cd rom that came with my system so I JUST USED MY WINDOWS VISTA CD ROM FROM MY gateway computer. After I installed it, it doesnt give a full screen on the computer. I have a 15.4 inch screen and only about 10 inches of it is being used. My screen looks like a picture frame. How can I fix this problem