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windows seven and Graphics /Resolution problem
i have compaq cq61-303sv with 3 GB RAM,2.2 C2D processor and 320 HD,having Windows 7 ultimate .i have a resoulation problem ,at screen a person can seen the pixel in square shape in lines.The pixel are apperar in lines.lines can be viewed at all screen.i install all driver of computer as well as the graphics and update the BIOS by downloading the drivers available at compaq website.Some time this problem automatically resolved and pixel become very tiny and can not be seen in the screen.after some time it come to previous line resoulation.these line can be seen at pictures and movies.i am very upset .any one can help me ?
i will be thankfu l to all who help me