I was playing MineCraft and all of the sudden my screen goes glitchy and I crash, I waited a few minutes the held down the power button till it turned off. Then I waited another minute and turned it back on. When It came back on it wentwhite and stayed white, and it has like glitchy spots all over the screen I need help figuring out what I need to replace. My first thought was to replace is the graphics card. But then my dad said before u waist money go ask someone.