HT2807 why is there a horizontal line across my imac screen?

why is there a horizontal line across my imac screen?

Not sure exactly which model your iMac is..?
see > How to identify iMac models
Sadly display lines generally indicate a problem with either the Display or the Graphic's Chip.
To check, take a screen shot of the display using the (Command Shift 3) keys and open it.
If the line is only seen on the Display and not in a screen shot, then it would most likely indicate a Display problem.
If the line shows up in a screen shot, then it would most likely indicate a Graphic's Ciip problem.

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HT4641 after modifying a document in Pages I found that there are horizontal lines across every line break when opened and saved it in DropBox. Does anyone know why?

after modifying a document in Pages ON MY IPAD AIR I found that there are horizontal lines across every line break when opened and saved it in DropBox. Does anyone know why?

Thanks a lot for your swift response. And sorry if it was a bit too hectic to go through my detailed query (which I did because it was misunderstood when I asked previously). As I've mentioned above, I was informed that updating to 5.0.1 would '''require''' me to '''delete''' the current version and then install the new one. And doing so will involve losing all my bookmarks. I guess I should have been more specific and detailed there. By losing, I didn't mean losing them forever. I'm aware that they're secured in some place and deleting and installing the software doesn't harm its existence. What I meant that if I install the new version, I'd have to delete the old one. And after installing the new version, I'd have to transfer them (bookmarks) back from wherever they are. Get it? When it updated from 3.6.9 to 3.6.13, and from 3.6.13 to 3.6.18, I didn't need to follow that process. They were already present on their own.
BTW, I'm having no problems with 3.6.18 but after learning about the existence of version 5.0.1, I'm a bit too eager to lay my hands over it.
Thanks for your help; hope this wasn't extremely long.

Why is there a horizontal line a quarter inch above the Home button on the iPad main screen all of a sudden?

Why is there a horizontal line a quarter inch above the Home button on the iPad main screen all of a sudden? Does that mean the screen itself is problematic?

First thing to try is to reset your device. Press and hold the Home and Sleep buttons simultaneously until the Apple logo appears. Let go of the buttons and let the device restart. See if that fixes your problem.
If that doesn't help I suspect there is a hardware problem with the iPad. Make an appointment at an Apple Store to have your device examined by a technician. Or contact Apple Support.

ThinkPad T400 horizontal line across bottom of screen

Hello. I'm running Windows 7. A horizontal, flickering band has appeared along the bottom edge of the screen. When it is flickering I see what looks the top of the screen or window. When it settles down, there is just a thin line across the taskbar icons. This happened after I had been playing a computer game, although I doubt that has any bearing. I replaced the LCD assembly 7 months ago because I was having a problem with full-screen flashing/blinking, and the new LCD had no problems. I have tried changing a BIOS settings (enabling/disabling VT-d) but that made no difference. The line is there from the moment of boot-up whenever the screen is on. Do I have a chip going bad? I don't have an external monitor to test this with.

there is no real easy of testing it once you have done the basic diagnostic.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Horizontal lines on my iMac screen

My iMac screen has developed multicoloured horizontal lines in random spots across the screen
Is there a fix for this?

How do I run in extended mode?
Model Name:          iMac
Model Identifier:          iMac5,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.16 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache (per processor):          4 MB
Memory:          2.5 GB
Bus Speed:          667 MHz

Thin black horizontal lines on 24" iMac screen/transparent dock icons

I have a 24" 3.06 GHz iMac (purchased in August 2008) and noticed after about a half hour of running basic programs (Mail, iTunes, Firefox) I start to get horizontal lines near the top and bottom of my screen. Then if I watch a full screen video I can see my dock icons look almost transparent through the video. I took my iMac into the Apple store last month and told them about it and they kept it for 3 days and ran their "tests" and stressed the computer out to get it to do it for them but they couldn't replicate the problem. They suggested that it might be my cordless phone is too close to the screen and the frequency of the cordless phone could be causing the problem but I tried moving the phone and it still does it. When the display is off for hours and I turn it back on the lines are not there, but once I have it on for a half hour they come back and don't go away until I power off or sleep the display. I've attached a few pics of what I'm experiencing. Thank you very much.
http://img.photobucket.com/albums/v626/xxbrankxx/IMG_0091.jpg
http://img.photobucket.com/albums/v626/xxbrankxx/IMG_0092.jpg
http://img.photobucket.com/albums/v626/xxbrankxx/IMG_0090.jpg

Since the Apple Store folks could not replicate the problem, you may want to consider a cause that is part of your particular environment.
For example, if you use a power strip (surge suppressor), what else is connected to the same power strip? Is it possible that you may have too many power-hungry devices connected to the same single wall outlet, and the iMac is not getting sufficient power? Or maybe it's some electrical interference with another device on the same circuit? As a test, try disconnecting everything else, and see if the problem recurs, or connect the iMac directly to a wall outlet by itself to see if the problem recurs.
Try moving the iMac to a different location in your home and running it to see if the problem recurs.

Notebook dv7t. Red transparent horizontal lines across entire screen.

I need to know if it's as bad as I suspect. 2-1/2 yr old notebook dv7t on Win 7, with 17.2" monitor. No error messages. Troubleshooting finds nothing. Never had any problems before. All day yesterday, Tuesday 8/19, rebooting and shutting down repeatedly without success. Today, nothing, no lines!. Gotta expect it to happen again. No update available for NVidia GeForce card. Can anyone please advise? Thank you. Sillenn

Hi @Sillenn
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that you had red transparent horizontal lines across the entire screen. You rebooted your system and they were gone , but you are concerned they may return.
Here is a link to Display Quality Issues to assist you .
You can run The HP Support Assistant to aid with HP updates to ensure you have the latest drivers
You can test the video card for failure. Testing for Hardware Failures (Windows 7, Vista)
Please let me know the outcome.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Horizontal Lines on my laptop screen

My laptop screen was damaged due to accident and I changed my laptop screen under warranty but now after one year of changing there is Horizontal lines coming on my screen and it is increasing.Due to horizontal lines my display is moving up and down therefore I can not see my display perfectly.I think they replaced affected laptop screen.
Is there any solution to fix it or change my laptop screen free of cost because its HP service fault.

Hi @navdeep195 ,
I have sent you a private message. If you are not sure how to check your private messages then this post has instructions that will guide you through the process.
Regards,
George
I work for HP

Horizontal line across the monitor. It happened yesterday.

I have a HP ENVY 23-c1 10xt AiO (Lavaca3-SB)PCUS and there is a horizontal line across the monitor. It happened yesterday.

Hello again javajohn23,
I would like you to try the following steps:
Step 1. Turn off the computer, and then remove the power cord
Step 2. With the power cord disconnected, press and hold the power button for five seconds
Step 3. Reconnect the power cord, and then turn on the computer
If the above steps do not resolve it try the next set up steps:
Step 1. Restart your computer
Step 2. Repeatedly press the F10 key about once every second for five seconds after turning the computer on
Step 3. Wait five seconds
Step 4. Press the F5 key. This restores the default settings of the BIOS
Step 5. Press the Enter key. This accepts the changes
Step 6. Press the F10 key. This opens the Save and Exit window
Step 7. Press the Enter key. This saves the changes, exits the BIOS, and then the computer restarts
Step 8. Restart the computer.
Another thing I can think to try is review the HP Support document: Changing Display Settings, Background Image, Icons, and Screen Saver (Windows 7) to see if you can identify anything out of place.
We can also try to reload the Intel Graphics Driver for your computer as it will wipe out the settings when the new driver is reinstalled.
Please re-post with the results of these steps. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

I have a straight horizontal line across my screen

Hi Folks
have a straight horizontal line across my screen. Can assist?

Yes, move the screen slowly back and forth, if it changes, you have a damaged monitor feed cable
Does it appear in all screens?
Does it vanish from time to time?
post a pic, hook your AIr up to an external monitor, if its there, its GPU /logic problem
if its gone, its as mentioned a bad monitor feed from the logic via the cable.
perform SMC reset and re-verify
SMC reset
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Contact Apple for an appt. for in shop diagnostics and likely repair.

A few months back I Dropped my iPhone 4 and I cracked my screen and now i cant unlock my phone due to touchscreen not working plus there are blured lines across the screen and I can't see anything that it displays. Now when I try too connect my iPhone 4 t

A few months back I Dropped my iPhone 4 and I cracked my screen and now i cant unlock my phone due to touch screen not working plus there are blurred lines across the screen and I can't see anything that it displays.
Now when I try too connect my iPhone 4 to iTunes on my computer at home an error message comes up saying that I have to unlock my iPhone 4 for it to communicate to my device.
But the problem is that I can't unlock my iPhone 4 because I'm unable to see the key pad and my touch screen no longer responds when I touch it.
I just want to reset my iPhone 4 back to its Factory Settings & start all over from the beginning.
How can I unlock my iPhone 4 with iTunes on my computer or any other option you suggest me trying.
Thank you in advance,
SiHero

If you have had a "local guy "repair your iphone you will not get any support from Apple for warranty OR post warranty
If Verizon return it to Apple it wil not be handled by Apple
If Verizon also use unauthorised repairers you may be lucky
(Apple do not sell parts to local guys or anyone else )

Thin Horizontal Line Across Screen

I've had them before and they disappeared spontaneosly. The latest one seems to want to hang around. Any idea how to get rid of it?

This is a followup to my post earlier today. A web search on "Thin Horizontal Line Across Screen" turned up this article:
http://www.daniweb.com/techtalkforums/post24947-5.html
Sure enough, my horizontal line came back. I decided to follow the advice in the linked article. I didn't even have to twist the monitor. I barely tapped the screen as I was reaching up to twist the panel, and the line disappeared. This suggests to me that the problem is a loose internal connection between the driver circuitry and the panel.

I have a horizontal line across the middle of the ipod screen and the ipod and itunes won't sync. What is the line and is it connected to the no sync.

I have a horizontal line across the middle of the ipod screen and itunes and the ipod won't sync. What is the horizontal line and is it connected to the no sync.

Hey Dean Marvin,
Thanks for the question. These two symptoms are probablyh related. To troubleshoot, let's try resetting your iPod:
How to reset iPod
http://support.apple.com/kb/HT1320
Thanks,
Matt M.

Weird horizontal line across my macbook air 11"

It's been 2 days my Macbook Air 11" (bought on 2011) started to display an horizontal line across the screen. It gets dark when the background is light and it gets light when the bg is dark. I tried to get a screenshot but it doesn't show the line.
Do you have any idea of what it is? I bought this macbook while I lived in USA but now I'm back in Brazil. Any suggestions?
Thank you.
Andréa

Start up in Safe mode.
http://support.apple.com/kb/PH4373
If this does not help, contact Apple.
Best.

Why is there a white line o my screen when the screen is a darker color

why is there a white line o my screen when the screen is a darker color

Please post a screen shot of your display. It will help to determine what needs to be done.
Ciao.

HT2807 why is there a horizontal line across my imac screen?

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