Why my screen have a checkered pattern, but when I start in safe MODE it disappears?

Why my screen have a checkered pattern, but when I start in safe MODE it disappears?

Safe mode disables extensions in Firefox 4, and disables hardware acceleration.

  • Tools > Options > advanced > General > Browsing: "use hardware acceleration when available.

If disable hardware acceleration works then check if there is an update available for your graphics display driver.

Tags: Firefox

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