Satelite Pro A300-28R - Display shows horizontal stripes

My Toshiba Satellite Pro A300 sometimes displays horizontal stripes which effectively makes the text and images unreadable before laptop crushes and I have to reboot. Usually happens when I am on the internet. Does any one know why this happens and how to solve it?
I once telephoned Toshiba UK Technical Support and a rather impatient adviser said it was a static discharge problem but why does it not happen with my Pavilion laptop?
My Toshiba Satellite Pro A300 is less than a year old yet the above problem has occured on numerous occasions. I have also had to replace the power adaptor already due to the cable being too stiff at the cylindrical piece next to the jack. Does any know of a production issue with this series of laptops?

>My Toshiba Satellite Pro A300 sometimes displays horizontal stripes which effectively makes the text and images unreadable before laptop crushes and I have to reboot. Usually happens when I am on the internet. Does any one know why this happens and how to solve it?
Such display symptoms can be related either to a display, graphic card driver or the graphic card chip.
First of all you should try to update the graphic card driver and should check this again.
Secondly if this issue would appear then you should connect an external monitor to the notebook in order to check if the same would be visible on external screen.
If yes, then the issue might be related to the graphic chip.
This would be the worst case because an graphic chip cannot be replaced but the whole mobo has to be replaced in order to solve such problem.

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