I really need my USB ports but all of a sudden they don't work anymore. My camera won't work and most importantly my TI link for my calculator won't work. At first I thought it was the link so I went and bought another one. Then I tried that and it still didn't work that's when I tried my camera and it won't work. So that's why I believe it's the ports. Can somebody please tell me what's wrong before I have to call the tech over here.