This is not the inverter, video card or the LCD cable problem. This is a valid need to change your LCD. If you not sure, you can try connecting your laptop to another CRT/LCD monitor.
2.Vertical line or Horizontal Line
In this case, your LCD needs to be changed. Sometimes when you give a pressure on certain part at the casing, the lines will be missing. For sure there is your LCD problem.
3. Bad Graphic/ video card Problem
If you are not sure with your LCD that needs to be changed or not, connect you laptop to other LCD Monitor or CRT. IF you see the same screen appears on both, it's mean that problems with your video card. But when you see good Picture appears on the external LCD/CRT, it's mean that you need to buy new LCD.
