Why am I getting vertical lines below each letter I type?
I keep getting vertical lines below each letter that I type when filling in things with Firefox 4. There is one line created for each letter.
I keep getting vertical lines below each letter that I type when filling in things with Firefox 4. There is one line created for each letter.
การตอบกลับทั้งหมด (1)
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).
- Don't make any changes on the Safe mode start window.
- https://support.mozilla.com/kb/Safe+Mode
- Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems
In Firefox 4 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.
In Firefox 4 you can use one of these to start in Safe mode:
- Help > Restart with Add-ons Disabled
- Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)