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when i mouse over any "active" content, the page turns black.

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When moving the cursor over links, photos, igoogle apps or other active content, it causes the page to flash "black". Firefox runs fine in safe mode. This is a fresh Firefox install with no addons.

When moving the cursor over links, photos, igoogle apps or other active content, it causes the page to flash "black". Firefox runs fine in safe mode. This is a fresh Firefox install with no addons.

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Try to disable hardware acceleration.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

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