i have a hp dv9060us
check the specs on google, this is a monster machine
waves started appearing on the screen then disappear
few days later the monitor would flash
now it starts, screen flashes, blue screen comes up then it restarts
it seems like video card came loose inside or else it is going to need to be replaced
due to this i will let it go for 400$ obo
not sure how much the video card will be or if its a do it yourself project

**this laptop has a hd dual layer dvd burner, hdmi port, tv tuner**