Satellite 1900-305: Screen is breaking up, freezing, or going white during use.

The Satellite 1900-305 which I have had now for almost four years has all of a sudden started having problems with the screen.
At random, the screen will freeze, or start breaking up into fragments which strange colours, or stripes down the screen, or slowly fading completely to white. Sometimes when I restart, the screen is blank (won't even get the Toshiba Logo), and so have to keep trying to restart until the screen starts working again.
I would say that this problem would occur within the first 10 minutes of turning on the machine. If it hasn't happened within this timeframe, it is fine for the rest of the day until the next time I turn it on.
Does this mean the graphic card inside might be starting to fail?

Hi
Well, this is very strange issue. Of course in my opinion it could be a graphic card malfunction but also something wrong with the LCD panel. But I cant give you a proper answer for this problem. In such cases the best way is to ask the Toshiba service for the details.

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Satellite 1900-305: Screen is breaking up, freezing, or going white during use.

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