20 inch G5 iMac displaying 1/4 inch blotchy line across bottom of screen

I just noticed a 1/4 inch thick blotchy, somewhat transparent line near the bottom of my screen. A year ago, right after I purchased this computer, I had to have some things replaced because of a thick white line that appeared across the bottom. Is this more of the same?

It's been discussed and locked for a while...
http://discussions.apple.com/thread.jspa?messageID=975713
This was endemic on the Rev. A 20" models. I had my screen replaced twice. After the PS, mid-plane and mid-plane went again they sent me a new one with a built in iSight. I suggest you call Apple Care to have them repair it.
Good luck,
Dan Reilly
Sarasota, FL
PS: When posting it is suggested you descibe your machine in detail with the version of OS you are running. It may help in getting responses.
20" iMac 2.1 G5 (iSight), 1.5 gigs, 12" iBook, iPod Nano (Black), iPod Suffle Mac OS X (10.4.6)

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Hello sprdthewrd,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
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Hi!
Just got a Lenovo T61 7659/CTO from Ebay, and was v. pleased with it at first, but it's now developed a strange jiggly line at the bottom of the screen where the tast bar is. As I'm not much of a techie, I don't really know if it's a hardware or software issue.
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UNITED KINGDOM 08705-500-900
Message Edited by lead_org on 07-27-2009 10:24 AM
Message Edited by lead_org on 07-27-2009 10:24 AM
Regards,
Jin Li
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1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
The test works on OS X 10.7 ("Lion") and later. I don't recommend running it on older versions of OS X. It will do no harm, but it won't do much good either.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of it have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message. See, for example, this discussion.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a general summary of what you need to do, if you choose to proceed:
☞ Copy a particular line of text to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
These are not specific instructions; just an overview. The details are in parts 7 and 8 of this comment. The sequence is: copy, paste, wait, paste again. You don't need to copy a second time.
5. Try to test under conditions that reproduce the problem, as far as possible. For example, if the computer is sometimes, but not always, slow, run the test during a slowdown.
You may have started up in "safe" mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
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If the text doesn't highlight when you click the icon, select it by triple-clicking anywhere inside the box. Don't select the whole page, just the text in the box.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
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exec bash
and press return. Then paste the script again.
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If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, a series of lines will appear in the Terminal window like this:
[Process started]
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Wait for the final message "Process completed" to appear. If you don't see it within about ten minutes, the test probably won't complete in a reasonable time. In that case, press the key combination control-C or command-period to stop it and go to the next step. You'll have incomplete results, but still something.
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If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
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Copyright © 2014, 2015 by Linc Davis. As the sole author of this work (including the referenced "Diagnostic Test"), I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

I have an 27 inch apple iMac 2010. Can I upgrade by buying a Mac book pro and use plug in and use the iMac as a screen only?

I have an 27 inch apple iMac 2010. Can I upgrade by buying a Mac book pro and use plug in and use the iMac as a screen only?

Yes your 2010 supports Target Display Mode using MiniDisplay Port input.
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Hello, I have iMAC 7,1, 20 inch, 4gigs of ram, Intel C2D perfectly runing OS Mavericks (10.9.5), will update to Yosemite, slow down my iMac?

Hello, I have iMAC 7,1, 20 inch,
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I know bunch of you guys would tell me to backup my data, but i don't have External hard drive (they are pretty expensive in my Country), I have some friend who could borrow me External HDD, but they have their data on it, and they mostly use windows.. I did not use Time Machine yet, but i think probably it would format HDD on Macs partitions, so, i will do it on my own guys (don't judge me about that guys please)..
So if someone could answer me that, i will really appreciate that.
Thank you, and best Regards!!
Boris

Old Toad wrote:
I recommend you upgrade your RAM to at least 8 GB for good performance with the apps you're using. Also keep a minimum of 25-30 GB of free space on your boot drive for optimal system and application performance.
The maximum RAM a 7.1 iMac can address is 6GB, the OP can keep one of the 2GB DIMMs and then add a matching 4GB DIMM. If the OP decides to do this, please only purchase from Crucial or OWC at www.MacSales.com.
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I have a mid year 2007 24 inch iMac and will be purchasing a new 27 inch Retina iMac, what is the easiest way to transfer the data and files from my old machine to the new one?

I have a mid year 2007 24 inch iMac and will be purchasing a new 27 inch Retina iMac, what is the easiest way to transfer the data and files from my old machine to the new one?

Following up on this thread,
I have a new iMac on the way and my current is from 2008, never had a problem but I am sure there are internal issues that I would prefer not to transfer.
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This month I just purchased a 27 Display with Thunderbolt. I have a 17 inch MacBookPro with the mini DisplayPort. How do I connect my MacBook Pro to the 27 inch Thunderbolt Video display.

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HI Matt542, and welcome to the community.
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http://support.apple.com/kb/HT4527
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https://discussions.apple.com/thread/2452022?start=0&tstart=0

20 inch G5 iMac displaying 1/4 inch blotchy line across bottom of screen

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