I have an Inspiron 17 5000 series laptop. About 4 to 6 weeks ago flashing black lines started to show on the screen. It is random. Most times when I first lift the lid. The lines never are on the password screen. Only after I log in and my desk top comes up. If I tap the laptop lid or move the position of the screen they go away, but sometimes comeback. Like I said random. I am thinking this may a connection issue or the screen itself. Any ideas on what the problem is.