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Screensavers no longer work

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After updating to firefox 4.0 my screensavers no longer play. I get an error message that the video card needs to be updated.

After updating to firefox 4.0 my screensavers no longer play. I get an error message that the video card needs to be updated.

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Try running Firefox in Diagnose Firefox issues using Troubleshoot Mode. If it functions properly in that configuration, then one of your add-ons is the culprit.

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You can also check the Graphics section at the bottom of the Help > Troubleshooting Information page if there are problems with the graphics display card.