Question about Dell Inspiron 9400 Notebook
Connect an external monitor to the VGA-output port on the laptop, to see if the video-effects are being caused by the video-card, or by a damaged "internal" LCD screen on the laptop.
Take any genuine Microsoft Windows XP/Vista/7 CD/DVD disk, and "boot" from it. Do the vertical lines appear when booting? If so, you have a hardware problem. If not, then only the currently-installed version of Windows is messing-up your display.
If all else fails, backup all the user's files to an external device, reformat the disk-drive, and reinstall Windows, to see if it's a messed-up version of Windows that is causing the symptoms.
Posted on Jul 03, 2010
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Posted on Jan 02, 2017
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