OS X :: Black Screen With A Flashing White Line?

Aug 8, 2009

I have an iMac 2.8 24 inch, about Two years old running 10.5.7 , when I start the computer it shows the normal Gray screen for about 30 seconds, then the screen goes all Black , but with a small flashing white line ( _ ) in the top Left hand side corner.

It just stays all Black for ever , I then hold down the On / Off button and turn off the computer, I then hold down the keyboard '' option key '' and press the on button at the same time , then I get the option to start from the main HDD , I click the Icon and the computer then starts normally , and every thing runs ok.

Can some one please tell me what I have to do to get my iMac to start up normally again , Ive run Repair Disk permissions but the problem still occurs . Over the last few day's Ive been trying out a few new applications, so not too sure if this has any thing to do with this current problem

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Sep 10, 2014

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Oct 11, 2009

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Mar 22, 2010

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Sep 3, 2014

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Jun 13, 2010

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Jul 6, 2012

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Mar 12, 2012

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May 25, 2012

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Jun 6, 2012

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Jul 13, 2008

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Jan 19, 2009

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Nov 7, 2010

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I've posted an screenshot with the line that's missing painted in red.

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Jun 7, 2010

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Jun 17, 2012

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Aug 14, 2010

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Sep 3, 2014

basically i bought my macbook literally two days ago and it worked perfectly for the first day and it still does except for the fact that there is a mysterious black line on the screen that appeared from nowhere! i have tried restarting it multiple times and i have never touched the screen violently...when i take a screen capture it doesn't show!!! i could swear I've never even touched the screen.

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Jun 15, 2012

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OS X :: Small Black Line On Corner Of Screen

May 18, 2009

So today I noticed a small black bar on the corner of my screen. I tried to get a screen shot of it, but i couldn't, like it was off the screen. However, my mouse dissapears under it when i move it there.It is a little hard to distinguish because it is the 2.4 ghz macbook aluminum, glossy screen so it has the black surrounding it, but it is definably there. This all along the right hand edge of the screen.

Although there is a chance it may have always been there, I am not so sure. I think there are lines along the top and left hand sides, but they are much smaller. again it is hard to tell. I am fairly sure that there is none on the bottom of screen. Is this normal, or what? I have applecare, and I didn't do anything to my macbook. Although it is getting me a little OCDish, and is slightly annoying, and I know these things on the screen tend to expand.

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Jul 8, 2010

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Jun 10, 2012

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Sep 13, 2010

I woke up to my MacBook fan going nuts. Had an error message on the screen that said something about a disk error. The machine wouldn't do anything (force quit, launch app) so I hard powered down. Now.....NOTHING. All I get is the white screen, followed by the flashing folder. Here is what I have tried so far.

I already booted from the restore cd that came with it and opened disk utility. The hard drive shows up as something like disk1 but not "Macintosh HD."Tried to repair permissions and got an error message. Thought then to do an archive and install......and the HDD isn't even a viable option to install the OS on.

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