Thanks for great advice
But i need to know reall issue regarding the fault.
Is there any way to test panel by him self in samsung?As i read training manual of panasonic lcd have the feature of self testing.

Imran khan

Hello again This is LCD issue so ignor it SAMSUNG L.C.D MONITOR 22" Model.226cw Model code.Ls22mexsfvx Monitor Had invert picture like negative and i also note one more point that screen is white(should be black) with own OSD when i trun off the windows Xp. Now its looks faulty panel see picture bel...