Windows 7 - How to get rid of horizontal lines on my monitor?

There are vertical lines on my monitor that are showing ... they are not there all time and are showing from time to time ... they are showing for about 10 sec and after that my monitor shows me no signal

pls help and sorry for my bad english

...the problem is on my other pc so system specs are not the same ...

hi Robi, first off do you have another cable you could try ? if so and you get the same probb go to devices.msc and delete your graphics driver , reboot and use the standard vga driver, do you still get the same prob ?

What cable ???... The one that connects monitor to electricity or with the other part on my pc ... if it's the one that connects with electricity i've tried that and it's not solving the problem

With vga driver i am gonna try now ... and can i somehow check is my graphic card malfunctioning ???

the monitor cable from the pc graphic card port to the monitor , give us a little more info on your system, particulary the graphics card and the os you are using

robi , sorry for not reading your system specs carefully , here is a link to the Dell drivers Drivers & Downloads they are only for XP so install the drivers you need in compatibility mode Compatibility Mode if that does not still solve your problem it could be the invertor or lcd screen is on the way out

i have wroten in first comm ...

...the problem is on my other pc so system specs are not the same ...

Windows XP Professional SP3
Intel(R) Celeron(R) 420 1.60GHz
1Gb RAM
NVIDIA Geforce 7300 SE/7200 GS

Does it happen when you are playing games but not when at the desk top? OR, does it happen only like several minutes or a half hour after booting the first time fo the day, but then maybe much less time after you reboot?

That kind of behavior indicated that temperature is causing problems, either you have very poor air circualtion or it's very hot where you are and the cad is over heating, OR there may be a cold solder joint that fails when the card warms up (A serioursly large problem with al electronics since the eradication of working (leaded) solder)

it happens each time different ... sometimes 2-3 minutes after is turned on ... sometimes after half hour ... sometimes the pc is on couple of hours and it does'n happen anything

Sometimes is happening when i am playing games ... sometimes is happening on desktop

Each time different

Ok, well there's no real smoking gun there, but if the vertical lines are like staticy, moving, or look like they are somwhat randomly wigling or shimmering then it's still likely bad hardware. Since you say the computer crashes shortly thereafter it's most likely the video card rather than the monitor.

It could even be the motherboard itself actually. If you have a spare, older vodeo card that will work in that otherboard you might try replacing it with that for a few days and see if it goes away.

Can i check for hardware malfunction with some program ???