Question | Firefox Help

posted by jimrab 2 years ago

Since installing version 4, on a 64 bit machine running Windows xp, I have a series of lines across the screen, and as I move the cursor, various parts of the screen are covered over by black or randomly colored areas. why?

I've given the basic information. My screen is messed up since I installed version 4. The location of the lines changes as I type, or as I change pages. And also areas get blocked out as I move the cursor.

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mbrubeck 2 years ago

Try disabling hardware acceleration. Click on the "Tools" menu or the orange "Firefox" button, then choose "Options", go to "Advanced", and un-check the box next to "Use hardware acceleration where available".
If that solves the problem, then it means there is probably a bug in your graphics driver. Make sure your Windows system is up to date, and check for driver updates from your computer manufacturer.

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jimrab 2 years ago

Yes, thanks, that solved the problem. I'll see what I can do about my graphics driver. But at least I can see what I'm doing!
crucibelle 2 years ago

I have the same problem, but I am on Windows XP 32 bit. I shouldn't have to turn down hardware acceleration to get this working correctly. It was fine before the update. This is clearly a bug that needs to be fixed. I will, however, see about updating my video drivers.

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balleluia 2 years ago

I have only the vertical lines thing and the fix mentioned here definitely did not fix it at all. It is a really ridiculous obnoxious bug. I have Vista 64 bit and I have attached an image of what they look like. They seem to show up as I type in fields mostly and will often randomly appear or disappear.

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liveneutralearth 2 years ago

I have the same problem since upgrading to Firefox 4. Absolutely no issues with vertical lines appearing in Firefox 3.
My graphics drivers are all up to date. Running on Windows 7 64bit.
In Firefox 4, I get the vertical bars when typing text, including when using the cursor keys.
Although turning off hardware acceleration did stop the vertical lines from appearing, I also do not feel it's a perfect solution, as I'd rather have hardware acceleration on than off.

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jimrab 2 years ago

By the way, updating my monitor drivers did solve the problem completely. I had upgraded to a digital monitor, but I hadn't deliberately upgraded the drivers for the monitor. I had to restart the machine after installing the new drivers, but since then, I have been able to use version 4 (and acceleration on) with no issues.
Hope everyone else can resolve it. But I agree that this seems more of a bug than a user problem.
pauldowling1@btinternet.com 2 years ago

Since updating my display drivers the problem is fixed. Im running XP with32 bit Thanks for your help