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

in the red oval u can see the lines horizontal lines of pixel ,these lines are on whole screen,some time these pixels get small and lines disappears and become normal resoulation. u can try it on compaq cq61 303sv model and see keenly u will observe it in blue colour background apparently

I also do not see anything wrong with the screen-shot. If you look at the taskbar next to Opera icon, you will see a similar blurred dot if that what you want to say. It seems that it is on your desktop image.

looks pretty normal to me

i have been in posting in at least 5 topics about pixels. look how stuffed up my screen is! Ha HA this is not normal and it appears pretty bad when i play civilization IV. but now this is happenning everythere look in the other forums that i have posted for more information look how stuffed this is. black stuff on the RHS and blurry - its like it's uncalibrated, anyone know how to 'calibrate' their screen (and yes i HAVE run the very helpful 'calibration' tool that comes with windows and does absolutely nothing