White rectangle on screen with beachball
Hi all,
now and then i get a white rectangle on my screen. I can not delet it or move it or do anything with it. I don´t know why or when it appears. But if its there, i can not undo it. When i restart, its gone.
Does anybody have an idea what that can be?
Pleas help me.
Thanks
Tempelaffe
Hello Tempelaffe,
It sounds like you get this whit rectangle in the screen shot out of nowhere, but it goes away when you restart the computer. I would start by performing a Safe Boot, and then resetting your PRAM in that order. Due to the nature of the issue, try it out for a while to see how it goes.
OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/HT1564?viewlocale=en_US
Starting up in Safe Mode
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key.
The Shift key should be held as soon as possible after the startup tone, but not before the tone.
Release the Shift key when you see the gray Apple logo and the progress indicator (looks like a spinning gear).
After the logo appears, you should see a progress bar during startup. This indicates that your computer is performing a directory check as part of Safe Mode.
To leave Safe Mode, restart your computer without holding any keys during startup.
And:
About NVRAM and PRAM
http://support.apple.com/kb/ht1379
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information.
Thank you for using Apple Support Communities.
All the best,
Sterling
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Take each of these steps that you haven't already tried. Stop when the problem is resolved.
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Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
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Just showed up today. Near teh middle of the screen an odd small rectangle in on teh screen, regardless of what window is open it is always on top and has a small black shadow on screen. whats the deal?
Hello Tempelaffe,
It sounds like you get this whit rectangle in the screen shot out of nowhere, but it goes away when you restart the computer. I would start by performing a Safe Boot, and then resetting your PRAM in that order. Due to the nature of the issue, try it out for a while to see how it goes.
OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/HT1564?viewlocale=en_US
Starting up in Safe Mode
To start up into Safe Mode (to Safe Boot), follow these steps.
Be sure your Mac is shut down.
Press the power button.
Immediately after you hear the startup tone, hold the Shift key.
The Shift key should be held as soon as possible after the startup tone, but not before the tone.
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And:
About NVRAM and PRAM
http://support.apple.com/kb/ht1379
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
After resetting NVRAM or PRAM, you may need to reconfigure your settings for speaker volume, screen resolution, startup disk selection, and time zone information.
Thank you for using Apple Support Communities.
All the best,
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Care to share?
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