Question about Apple iMac Flat Panel Fan (p/n 922-4677)

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Imac is displaying in negative.i.e word documents are black with white text. Photos have cyan faces instead of red. Mac is working apart from color issues.

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Re: Imac is displaying in negative.i.e word documents are...

It sounds like you managed to turn on the Universal Access inverse image setting.  Try hitting ctrl-option-cmd-8.
For future reference, go to the Universal Access pref pane under System preferences.  
I hope that helps.

Posted on Jan 28, 2008

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IMac G5 iSight starts up with white screen and apple logo after trying to update OS X

When white screen appear :
  • press Command Ctrl+R then
  • Mac OS X Utilities screen Appear then
  • try to Re-install Mac OS X.
if still face issue and need more help then follow and Apple and Mac Technical Support .

Jul 21, 2014 | Mac Desktops


Black and white or negative screen resolution in Mac OS X

A black and white display, or negative screen resolution, is an issue which can occur within the various Mac OS X system versions ranging from Mac OS X 10.3 to Mac OS X 10.6.

It can appear as an anomaly which can leave a Mac User dumbfounded, not sure what is going on.

At one time your screen is normal like this, but then somehow,


the screen changes into this strange negative, inverted screen.


So how does this occur?

The answer is more simple than you think.

An inverted screen like the one you see in the screen shot above, is not actually an anomaly, or the result of some sudden strange happenstance. What's more, chances are, this occurred because of what you did.

Its an easy fix however, because the only way your Mac OS X desktop screen can turn into a negative or black and white resolution, from its normal color resolution, is if a setting within your Mac OS X system has been modified.

To return your screen back to the normal color resolution, follow these steps:

* Click on the Apple menu icon, located on the upper left corner of your Mac OS X desktop screen.

* From the drop down menu, select System Preferences.

* Within System Preferences, select the pane (in System Preferences, Apple references all icons as "panes") entitled "Universal Access".

Quick Note About Universal Access:
The reason this System Preferences pane is known as"Universal Access", is due to the purposes Apple designed it for. If you notice the image for this pane above, this symbol for this feature, is similar to a placard or sign you would see on a car license plate, parking space, door or building, for an individual who has a disability or is handicapped.

Universal Access was designed to enhance features like Voice-over speech (your Mac talks to you), screen size, display settings, keyboard and mouse settings for those Mac users who are vision impaired, hearing impaired and /or physically disabled.

* For the next steps in the process:

Click on the Universal Access pane.
If you look in the screen shot, under Display, you will see that the current setting is "White on Black".


Click on the radio button entitled "Black on White"
and this is the window you will see:


Back to normal!


That is all it takes, to return your desktop screen resolution back to normal.

This is why you were suggested as the probable cause" for your desktop screen to go into Inverted mode. Chances are you may have been in System Preferences, clicked on the Universal Access pane, and in exploring settings, may have clicked the Display setting and the
White on Black radio button, causing the screen to go into
the inverted mode or change in gray scale.

Another theory could be that you may have accidentally pressed the Ctrl-Alt-Apple Command keys on your keyboard, combined with either < > keys, depending on if you were in process of' increasing or decreasing contrast on your Mac's screen or display.

The true purpose of the inverted screen mode or change in gray scale, is to aid Mac Users who may be sensitive to the bright normal colors, that you and I see on the standard Mac OS X display screen, due to poor or failing vision.

So now that your screen is back to normal, if you should see an inverted display, or screen that resembles a negative resolution, like that of a photo negative, you know how to correct this issue.

For more information on Universal Access, click here.


- Mactechtrainer

on Feb 08, 2010 | Mac Desktops

1 Answer


Well .... If I remember right if you hold down the D key it will do just that... maybe the key is stuck

Sep 29, 2013 | Apple iMac 17" Desktop

1 Answer

My Mac looks like a Negative but almost like a sketch- there is still color but you can hardly see writing etc. I went to the black/white mode and white/black mode- and that did not help it any.

failing that, try booting in other user accounts try plugging the monitor in after its booted up try booting it in safe mode does it still occur?
failing all of that try resetting the PRAM/NVRAM

Jan 13, 2011 | Apple iMac G5 Desktop

1 Answer

My Mac desktop, justa couple years old when i turn it on, the white screen comes up and after a few shows folder, with a question mark. The icon blinks, but nothing happens, mouse doesn't work either

Mac can't find the system to start up as usual, if you have the dvd that came with it (or any retail mac os dvd) start up from that and run the disc utility which will hopefully repair your disc.
If you have not the dvd , then do this start up the mac holding down apple and s keys , you will get a black screen and white text. You are now in the system firmware and you have to careful here!
wait a mo press return once, then type
fsck -f
press return once, this will force the firmware to check the disc.

if this goes ok then try restarting normally.

hope you helps
thanks for using FixYa

Aug 23, 2010 | Apple iMac G4 Desktop

2 Answers

Colour on desktop and entire system has turned a negative colour

I am taking it that you are using OS X so go to system preferences, click on the control panel called Universal Access once in there under display it is probably on white on black the setting you should be on is black on white. Hope this helps.

Mar 20, 2010 | Apple iMac G3 Desktop

1 Answer

Increase text size

(Pretty vague request...)
To increase text size on the screen as a whole, lower your screen resolution in Apple Menu / System Preferences / Displays.
To increase the text size in a document, select the text you want to modify and press the key combination command-+. This works in many, but not all applications. If it doesn't work in your particular application, please be more specific about what it is.

Nov 25, 2009 | Apple iMac 24" Desktop

1 Answer

My desktop looks like a negative photo

go to system preferences then universal access under Display see if display is set to white on black and change it to black on white

Nov 01, 2009 | Apple iMac G5 Desktop

1 Answer

Imac g4 lcd black screen replaced pram battery

If you can find an older SVGA monitor, try hooking it up to the port on the back of your mac. If you get video then chances are the LCD display is shot.

Sep 01, 2009 | Apple iMac G4 Desktop

2 Answers

My desktop looks like negative photo shot?

Aldanipio2 is close. You go to...
  1. System Preferences
  2. Click Universal Access
  3. Click Black on White (Yours is probably set to White on Black)
You many have gotten into this mode to begin with by pressing
Try that key combination and you will see it toggles you between positive and negative image. This can often trigger itself accidentally when the key command is similar to that in another program. I often find whenever anything visibly strange happens to my desktop, Universal Access is the first place to look.
Best of Luck.

Aug 03, 2008 | Apple iMac G5 Desktop

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