Display has gone very big and will not reset

  johnincrete 17:00 10 Dec 2013

On my daughter's computer, while she was using Word, the screen changed so that everything is very big. Additionally, there are yellow vertical lines about a half centimeter apart. I have tried Settings and the results are: Screen resolution 640x 480 pixels Colour quality lowest

I tried to change the screen resolution and colour quality but, when OK to save options, nothing happens and the settings have gone back to where they were.

I tried troubleshoot in the Settings screen and got the message: Windows cannot open Help and Support because system service is not running. To fix this problem start the service named "Help and Support"

Where is this service?

I tried Advanced. It tells me that DPI setting is normal size 96Dpi

The computer was built in a shop & has no manufacturer's name. It is running XP SP3

Any ideas?

  onthelimit1 17:12 10 Dec 2013

Sounds to me as though the graphics chip may be on the blink. Easiest option is to try a cheap video card, I would have thought.

  Fruit Bat /\0/\ 19:52 10 Dec 2013

Look in device manager - any exclamation marks against graics (display) driver?

try uninstalling and reinstalling or updating driver.

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