For the last couple days my laptop screen has been, well, screwed up. There's these blueish horizontal lines covering the entire bottom portion of my screen, from the bottom to about 3 inches up. I tried taking a screen shot, but it turned out normal looking. It's finally starting to frustrate me-- I can click on whatever is along the bottom portion (ie: the task bar, the clock) , but I can't see it. So I don't know where whatever I want to click on is. Any ideas? (The laptop is a Dell Inspiron 6000).