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You are here: MacNN Forums > Software - Troubleshooting and Discussion > macOS > 10.7.4 visual bug

10.7.4 visual bug
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Hawkeye_a
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May 15, 2012, 08:52 PM
 
Im running on a late 2008 unibody MacBook(4GB ram).

I have folders in my dock and when I drag files out and hover over the desktop the desktop goes haywire; random colors,etc. sort of like if the memory being accessed for the desktop was incorrect. This visual anomally only seems to happen in the scenario described above.

Can any of you replicate it? And any suggestions as to how to fixit?

Cheers
     
Big Mac
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May 15, 2012, 09:14 PM
 
Happens in other accounts?

"The natural progress of things is for liberty to yield and government to gain ground." TJ
     
Hawkeye_a  (op)
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May 15, 2012, 11:04 PM
 
I only have one account on my machine. I've tried restarting and zapping the pram several times to no avail. No clue what might be causing it, but I hope it's not a hardware issue.

Like I said it only happens in the scenario above, if I drag and drop files in any other way nothing screwey happens visually.

Cheers
     
Spheric Harlot
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May 16, 2012, 02:54 AM
 
Create a new account. See if it happens there, as well.

Do you have any QuickLook plug-ins installed?
     
chabig
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May 16, 2012, 06:37 AM
 
Try this...do your drag thing and while the screen is weird take a screen shot (cmd-shift-3). If the screen looks weird but the screenshot is OK, that could point to a problem with our video hardware. If the screenshot is weird too then it's probably software, and you can rule out hardware.
     
ChrisF
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May 16, 2012, 10:55 AM
 
Originally Posted by chabig View Post
Try this...do your drag thing and while the screen is weird take a screen shot (cmd-shift-3). If the screen looks weird but the screenshot is OK, that could point to a problem with our video hardware. If the screenshot is weird too then it's probably software, and you can rule out hardware.
Screen shots are routed through video memory, so those can show corruption too if there's a hardware issue.
     
Hawkeye_a  (op)
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May 16, 2012, 07:28 PM
 
I booted into my SL install and noticed it wasn't happening. So i deleted the dock,desktop and finder preference files from my Lion install, restarted, zapped the PRAM, and now it doesn't seem to be happening.

Thanks for the suggestions guys.
     
   
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