Display acting up - Could it be the graphics card?

About once a day weird lines will appear on the screen, in random colors. It won't just be floating there though, it seems to be stuck to a particular window. I can't understand why this is happening.
Also, multiple times a week it will crash when launching Exposé, forcing me to hold down the power button and restart. The Crash screen doesn't come up, but I've waited to see if it could fix the problem. No luck there.
I've had this computer for about 4 years now, and am wondering: Could it be the graphics card?

Hello KnowYourMac
Welcome to Apple Discussions
To test if your graphic's problem is hardware or software related, backup all your important data and reinstall the OS X. If reinstalling the OS X fixes the problem then your good to go, if not then you have a hardware problem that needs to be serviced.
According to your profile that Late 2006 24" iMac with the NVIDIA GeForce 7300 GT should just now be approaching 3 years old.
http://support.apple.com/kb/SP28
If you need service and purchased Apple Care for that iMac, then there's a good chance it's still maybe covered under warranty?
http://www.apple.com/support/contact/
Dennis

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Hi Peter,
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http://support.apple.com/kb/HT1825
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Hi there,
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Cheers GR

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Hi All
I am having a very concerning issue with my laptop (Toshiba Qosmio X305). It will only boot in safe mode or if I disable the graphics card.
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Hi buddy,
It seems that this is a typical example, that only pretested display drivers from Toshiba should be used. Why?
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I think the only option is replacing the graphic card. Therefore you should contact an authorized service provider in your country. Here you can search:
http://www.csd.toshiba.com
Explain the whole story and then you will see, what the technicians say. If your notebook is under warranty, hopefully this will be covered too. Normally other display drivers you have to install on your own risk
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Thanks for the reply Paul
I see.
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The Yosemite upgrade very often damages existing Photoshop installations. Thank Apple for that.
You need to uninstall and re-install Photoshop, then apply all the Photoshop upgrades from scratch.
But first, give us details about your setup:
BOILERPLATE TEXT:
Note that this is boilerplate text.
If you give complete and detailed information about your setup and the issue at hand,
such as your platform (Mac or Win),
exact versions of your OS, of Photoshop (not just "CS6", but something like CS6v.13.0.6) and of Bridge,
your settings in Photoshop > Preference > Performance
the type of file you were working on,
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what troubleshooting steps you have taken so far,
what error message(s) you receive,
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if you're having printing issues, indicate the exact make and model of your printer, paper size, image dimensions in pixels (so many pixels wide by so many pixels high). if going through a RIP, specify that too.
A screen shot of your settings or of the image could be very helpful too,
etc.,
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Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
Thanks!

After choosing the graphics card (Quadro 4000) as recommended by adobe ..we have problems....

http://helpx.adobe.com/after-effects/using/rendering-opengl.html
http://www.nvidia.com/Download/index.aspx?lang=en-us
After choosing the graphics card (Quadro 4000) and then adobe as the partner the following applicatons are shown. I have noticed that the only CS6 product is the Premiere Pro CS6 but we do use the whole Adobe Master Suite.
Can Adobe please provide clarification on what version of driver is required for the Adobe Master Suite CS6 when using the Quadro 4000 graphics card in windows 7 64bit (pro)
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have tired latest recommended drivers and rolled back a few. still NO resolution.
THe systm has,at adobe 's tech recommendations, had adobe cleaner remove ALL and cloud has reinstalled all of the master suite. still no resolution.

This could be a combination of factors or a bad Quadro card of which I would not be surprised. You may want to contact me direct on this one so I can remote in and see what is going on.
Eric
ADK

Ok, so I have a 1g macbook Pro and I'm having an issue with the graphics card, so I believe.

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Threads are just processes that link together like the threads in these discussions, well, maybe that is a bad example given how disjointed these get
It looks like you are not pushing the cpu or hard drive enough to cause your behavior. Not sure what the temperature limit on that cpu is, on the newer models it is around 100-110 °C which is notciabley hot, and the system shutsdown for self protection at the thermal limit.
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Trying to zero in on when this occurs to see if we an isolate the problem.

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Hello everyone.
I have a big problem with my notebook concerning the video driver.
Yesterday i've booted my windows and put Windows Vista on it.
I've taken all the drivers from toshiba site but i've encountered a problem regarding the graphic driver.
When enter setup it starts and them it gives me an error "This computer does not meet the minimum requirements for installing the software. Setup will exit". Need to say that before the boot i had Vista also and it worked.
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i`ve tried all possibilities
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Hi
I can not understand this.
The unit supports the Intel GL40 graphic chipset.
The Intel driver from the Toshiba page should be ok
In readme.txt file you can find exact the same info which has been posted by Paolo30.
1. Click "Start" then right click on "Computer" button and then choose Manage.
2. Permit the User Account Control to run by selecting the "continue" button. When the Computer Management window opens select the "device manager" icon. (NOTE: IF UPDATING DRIVER GO TO STEP 3B)
3a. Double click "Video Controller (VGA Compatible)". (Go To STEP 4)
3b. Select "Display adapters" then Double click on the graphics controller
shown.
4. Click on "driver" tab and select "Update Driver".
5. Select the following option: "Browse my computer for driver software".
6. Select the following option: "Let me pick from a list of device drivers on my computer".
7. Click on the "Have Disk..." button and then the "Browse" button.
8. Enter the directory where you unzipped the file you downloaded, and then enter the "Graphics" subdirectory. Locate and highlight the "igdlh.INF" (if 32-bit) or "igdlh64.INF" (if 64-bit). Click on the "Open" button.
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10. Click on the "Next" button. The operating system will install the driver. Click on the "Finish" button when done.
11. Click on the "Close" button and then click on the "Yes" button to reboot. The driver should now be loaded.

Display acting up - Could it be the graphics card?

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