I have a HP Pavilion dv5-1235 dx laptop. Two days ago I had my laptop LCD screen replaced. The replacement screen was used, seemed in good condition. When the repair guy was replacing it though, he cracked the exterior plastic frame. He assured me it wasn't a big deal; it's just a small horizontal break about 3/4 the way up the screen on the right. Initially, the screen worked fine. But after a little while, it began to act up. Namely, the screen gets these thin, whitish horizontal lines that flicker across until they take up the whole screen. Sometimes the image freezes, sometimes not. Usually it goes away when I either 1) adjust the angle of the screen, or 2) apply gentle pressure to parts of the frame. However, it's annoying and it is happening with increasing frequency. Is this related to the cracked frame, and how can it be fixed?