Im having problems with my HP 2511x monitor. Whenever I scroll a webpage or watch a video I get a line that crosses the screen horizontally. It doesnt always stay in the same place, it usually moves up, slowly. Do i need a driver or something to fix this? I just switched to Linux today and ive googled and searched the forums for hours and I cant find an answer. This never happened with windows. Please explain any answers/information as if you are talking to an infant who knows nothing of linux.