Screen flickers the screen flickers grey with lines

The circuit tape that runs from the computer board to the screen has a broken filament, it must be replaced.

If your LCD TV or monitor has stopped working, or is displaying one of the following
symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can
examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life
of your monitor or TV by several years.
Check the cables, connectors and connections.

sounds like a bad sync.
1]start windows in 'safe' mode::if my guess is correct it will clear.2]if you can get to display properties [graphics options in Windows 7]; I suspect that the refresh rate is set too high.3] bad monitor or cable [may reseat and it will clear]

Possible LCD issue, but you have to check first in BIOS if the same symptoms.

If in BIOS doing the same it is already a mechanical failure.

If not? check all the connections and also try reformating the system.

Youre x box is interfering with youre sky you ned a scart swiching box to stop the intrference

There is a component failure on the board inside the display. Since you did not post the model number that is all that I can tell you.

I had a similar problem on a different monitor and fixed the green sparkles by selecting a lower refresh rate.

swith it to PAL mode...

The LCD has gone bad. You can get a replacement one for about 30 dollars from ebay. It is super simple to replace. 2 screws is all.

http://www.repairmysidekick.org/Sidekick-LCD-Screens/Sidekick-II-Replacement-LCD

adjust your screen at the back of tv flyback down you see the fucos and screen adjust the sreen ok