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When I'm typing to compose an e-mail, the alphabets jump and I oftentimes lose a good amount of text already typed.

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  • 1 有這個問題
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  • 最近回覆由 cor-el

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When I type, the letters shift (they jump from desired position to another position, i.e.: sometimes, the word jumps to the addressees tab, or some place else like down below the task bar.

When I type, the letters shift (they jump from desired position to another position, i.e.: sometimes, the word jumps to the addressees tab, or some place else like down below the task bar.

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).


In Firefox 4 and later Safe mode disables extensions and disables 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.