Hello guys I have little problem in my hp Elitebook 6930p. The screen get some lines and squares as shown in the pictures .. I did update the graphics driver and even try different copies of windows .. win 7 ,8 etc.. but the problem is still .. but when t take a screenshot with sniping tool they appear in the screenshot so I think it's not hardware issue!!. And one more thing .. when I move the mouse on the lines they vanish but they came after minutes later and this problem mostly I had it with pictures .. please help me .. thx
http/imgur.com/6LvAYVa
http/imgur.com/6LvAYVa