Tiny Cyan and/or Magenta Squares appearing randomly on screen

This just started happening tonight, and no one I know has any idea what it could be. Here is the scrrenshot.... but the fact that it is actually showing up in a screen shot has me worried it might be the graphics card.
I was loading album artwork to iTunes when all of this happened [if that might help anyone help me]
here is the screenshot
MacBookPro Mac OS X (10.4.8)
MacBookPro Mac OS X (10.4.8)

This is usually symptomatic of VRAM corruption. Try shutting down (although I'm sure you have already), leave it off for a minute or so and then see if it changes anything.
You can also try resetting PRAM and NVRAM…
http://docs.info.apple.com/article.html?artnum=2238
Otherwise, as suggested previously, contact AppleCare.

Similar Messages

A magenta square appears randomly for 2 seconds in a video

In one particular video, once I have published the pdf, there is a random magenta square that pops up for 2 seconds about 2 minutes into the video. This does not appear when I play the video in Quicktime. I have tried deleting and re-importing the video, and the same thing appears in the same spot. Suggestions?

vinayv wrote:Is this when switching to full screen? i.e., fullscreen video playback in youtube, or games like minecraft switching to full screen from desktop?
I agree with where vinayv is heading. This sounds like the video card changed format, and the monitor is blanking while it captures the new video timing.

Light cyan and light magenta ink...

I am setting up a project that is going to be printed by a CcMmYK printer. I need to have the ink that my printer is using for my project tested by a lab for safety reasons (this is a children's product that I am producing). What I need to know is how do I create a color swatch on Illustrator that will be printed only using the light cyan ink and another swatch that will use only the light magenta ink?

First idea - can't you just send an ink cartridge to the lab? That would be easier than what follows.
Most of the printers I know of don't have a way to directly specify that you want to use light Cyan vs. regular Cyan. These printers generally take CMYK input (or even RGB) and internally they do separation/screening to CcMmYK.
What you should do is to create a set of swatches of varying tint values (ex: 50c 45c 40c 35c 30c etc.) and print these. Examine them with a high powered loupe to see if you can see the difference between Cyan dots and Light Cyan dots. If you can't see it, try creating patterns like concentric squares with the dark tint as the outside square and the light square as the inside one. Once you know what tint percent produces Light Cyan and Light Magenta, you're set.
Note 1: Many printers have unique halftone screens for each media type, so make sure you do this experiment on the final media.
Note 2: You may also have to figure out how to print with color management turned completely off, not only in Illustrator, but also in the printer. With color management on, there is a good chance that a Cyan swatch in Illustrator will not print as only Cyan. If there is no way to turn it off then you will need to experiment with different RGB values in Illustrator to see if you can find one that prints as pure Cyan.

I have an issue where coloured dots (small squares) appear on my screen and it gets to the point where the entire screen freezes although the mouse still moves but nothing works and I need to turn the computer off at the switch. Any ideas?

I have an issue where coloured dots (small squares) appear on my screen and it gets to the point where the entire screen freezes although the mouse still moves but nothing works and I need to turn the computer off at the switch. It doesn't happen all the time but is very annoying. Any ideas?

Reset the SMC and PRAM, if the issue continues then you likely have a failing GPU (hardware) that requires repair. To be sure take it in and have it professionally assessed.
Intel iMac SMC and PRAM resets

My desktop files and folders no longer appear on the screen. I think this is a result of an iPhoto updating. It appears (from getting info) that now Desktop is being treated like a normal file for which an application to open it must be supplied. Help?

My desktop files and folders no longer appear on the screen. I think this is a result of an iPhoto updating. It appears (from getting info) that now Desktop is being treated like a normal file for which an application to open it must be supplied. Can anything be done? Incila

You are not going to be able to run your old system from the backup on this old computer as the hardware is incompatible.
You need to get a new computer or a refurbished one.

Just installed Mac OS X 10.8.5 on a Mac Pro 2010 platform. The App Store shows there is an upgrade, so I click the download button. After about 2 hrs the process stops and an Error (102) appears on the screen. Any idea what goes wrong? THX

Just installed Mac OS X 10.8.5 on a Mac Pro 2010 platform.
The App Store shows there is an upgrade, so I click the download button.
After about 2 hrs the process stops and an Error (102) appears on the screen.
Any idea what goes wrong?
THX

ahstephen wrote:
Thank you for the response.
The upgrade I'm interested is for OS X v.10.8.5...
...The App Store page shows 2 different upgrades:
Mountain Lion (10.8.5) Software Upgrade, and
Yosemite FREE upgrade
If the App Store is showing 10.8.5 as an update, what do you currently have installed? The final update to Mountain Lion was 10.8.5, and since the basic OS installation of Mountain Lion is no longer offered in the App Store, that would suggest you're currently at an earlier version of Mountain Lion - 10.8.x where x=less than 5. If that's the case, I'd suggest getting the 10.8.5 update. There is also a Supplemental Update for 10.8.5 and that may be what the App Store is offering.

I just bought a movie download it and it plays but appears only dark screen no sound

i just bought a movie download it and it plays but appears only dark screen no sound

Hi sergio.cajiao,
Here are some troubleshooting ideas for video playback issues:
Troubleshooting iTunes for Windows Vista or Windows 7 video playback performance issues
http://support.apple.com/kb/TS1718
If that does not resolve the issue, you may want to report it to iTunes by following this article:
How to report an issue with your iTunes Store, App Store, Mac App Store, or iBookstore purchase
http://support.apple.com/kb/ht1933
Cheers!
- Ari

A black border and semi circle have appeared on my screen of my iPhone 5. It wasn't there this morning it just appeared now a yellow tinge has appeared around the semi circle and sometimes I get a line going across my screen which then disappears

A black border and semi circle have appeared on my screen of my iPhone 5. It wasn't there this morning it just appeared now a yellow tinge has appeared around the semi circle and sometimes I get a line going across my screen which then disappears

Did you already try to reset the phone by holding the sleep and home button for about 10sec, until the Apple logo comes back again? You will not lose data by resetting, but it can cure some glitches after installing new software or apps.
If this does not work, set it up as new device, explained here:
http://support.apple.com/kb/HT4137
If still no luck, get it serviced by Apple or visit an Authorized Apple Service Provider next to your place and let them have a look at your device.

I own an ipod touch 5th gen ios 7.1 and while using it suddenly black and white vertical stripes appeared on the screen and now it wont turn on!!!what should i do?

i own an ipod touch 5th gen ios 7.1 and while using it suddenly black and white vertical stripes appeared on the screen and now it wont turn on!!!what should i do?

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

I have a iPhone 5s fell into the water and damaged fingerprint sensor motion and lines of light appeared on the screen, but it still works and did not hurt anything else Can I replace it with a new phone

I have a iPhone 5s fell into the water and damaged fingerprint sensor motion and lines of light appeared on the screen, but it still works and did not hurt anything else Can I replace it with a new phone

No. The warranty does not cover damage.
You can only get a replacement if you can talk Apple into selling you and out of warranty replacement.
Allan

Light and dark solid grey vertical lines appear randomly on screen

This has happened about 4 times in the last couple of months, when these light and dark solid grey lines appear on my screen, I have to turn my computer off by holding down the power button and rebooting it, it fixes the problem for the time being. These lines appear randomly, they have appeared when using Photoshop CS6, also when just using the internet, listening to Pandora. 1 out of the 4 times these lines appeared, there was a ticking/clicking noise... I took it to the local computer shop and they did tests on it twice and found nothing.
Processor:
     2.66 GHz Intel Core 2 Duo
Memory:
     4 GB 800 MHz DDR2 SDRAM
Hard Drive:
Capacity:    319.73 GB
Available:    144.87 GB

Run Apple Hardware Test in extended mode a minimum of 3x back to back. If errors appear this confirms a hardware issue that can only be fixed by taking the machine in for repair.

Squares appearing over game screens

I have been running code using a Graphics object for over 2 years now without any problems. I havent used any Graphics2d objects and I use double buffering to paint the objects to the screen.
I use Netbeans and the game can be launched from the web site using webstart.
The game gets soundfiles when needed from the web site too.
For the last week there have been ugly texturedsquares moving all over the game screens. This only happens on my development machine.
If I copy the dist folder with no changes to another pc it runs without any problems. Similarly when the game is launched with webstart from the web site there are no problems on my other machines.
The sprites look like they belong to some other game and I have at no time written code like this in any of my applications. There are no viruses or malware on the machine and the caches have been emptied, old java versions uninstalled and Netbeans has been updated to latest version.
The problems started when I visited an IRC channel and I am sure that somehow, something on my pc was changed. I can find no evidence of this and my code has not changed.
I use classes that paint themselves using image files mostly but these sprites look like they are being drawn using the Graphics2D class.
The images seen to appear randomly and they change colour and pattern. They dont appear where a repaint is needed and they are larger than my own sprites,
Does anyone know how I can detect this problem's source?
I have been writing the game for over 3 years now and I can see no reason why this is happening.
I dont want to have to format my development machine but it looks like I might have to.
I would be really grateful for any help with this!

Have you recently upgraded to 1.6.0 update 10? Are your graphics drivers up to date?
I ask because update 10 uses more hardware acceleration, and your issue appears to be a graphics card memory glitch, rather than in the Java application layer.

Purple/Green bars appearing randomly on screen

Hello
Earlier today, purple/green bars starting appearing randomly on my imac screen. I managed to grab a screenshot of it.
Sometimes it stops for a long time, and then it reapears for a bit. Is there any way of fixing this?
I am running OS X Mavericks 10.9.2 on a late 2013 imac.
Processor: 2.7 GHz Intel Core i5
Memory: 8 GB 1600 MHz DDR3
Graphics: Intel Iris Pro 1024 MB

There is a one year Apple Hardware Warranty (three year w/AppleCare) on Mac's.
You need to contact your local Apple Store or AASP and make an appointment to have it looked at.
see > Apple - Find Locations

At log-in Firefox stated that it was having a problem closing tabs and directed me to click a tab to continue, which I did, and sexually explicit images appeared on the screen and when I tried to close the screen, another screen popped up with additional

At log-in Firefox the screen opened up with the message "Oops, We're embarrassed, we are having trouble closing tabs" or similar wording directing me to click on a tab to continue, which I did. At which time a screen full of rows of thumbnail pictures of a young girl in appeared on the screen. Some of the pictures had the girl imitating a sexual act. When I tried to close out of the screen by clicking on the 'X' at the top right of the screen, another screen opened with another larger picture of this little girl. I finally got out of Firefox. When I open it up again the message wasn't on the screen. As these pictures were disturbing I cleared them out of my history.
My questions are - 1. Since these pictures appeared to be of a minor, can you backtrack to the source to find out where they originated and have something done about the individual who posted them? And,
2. - Did my clicking on the link as directed - by Firefox, I thought - open my computer up to the personal information on my computer being compromised?
== This happened ==
Just once or twice
== Around 11:30 on Sat June 19th

It looks like you have some malware.
Have you tried running an antivirus scan?
Some free antivirus options:
[http://www.avast.com/eng/programs.html]
[http://www.avira.com/en/download/index.html]
Malware program recommendations:
Malwarebytes' Anti-Malware - [http://www.malwarebytes.org/mbam.php]
SuperAntispyware - [http://www.superantispyware.com/]
AdAware - [http://www.lavasoftusa.com/software/adaware/]
Spybot Search & Destroy - [http://www.safer-networking.org/en/index.html]
If these don't find it or can't clear it, post in one of these forums for specialized malware removal help:
[http://www.spywarewarrior.com/index.php]
[http://forum.aumha.org/]
[http://www.spywareinfoforum.com/]

Why does my phone cut and the apple symbol appears on the screen?

When I use the telephone, it suddenly cuts and when I look at the phone, the apple symbol has appeared on the screen.

It sounds like iOS has become corrupted on your phone. See: http://support.apple.com/kb/HT1808
If this doesn't resolve the problem let us know and we can try other solutions.

Tiny Cyan and/or Magenta Squares appearing randomly on screen

Similar Messages

Maybe you are looking for