Flashing Apple icon with horizontal line flashing at random on screen

I know this can't be good
Here's the background info:
Our G5 completely crashed about 4 months ago. Lost my iTunes library but my iPod mini was full and working, so I used it until the battery died. Now iTunes is reinstalled but I was scared to plug iPod in and wipe out everything on it by mistake. Today after researching on this site I dowloaded Senuti to help with getting the contents of iPod back into iTunes library. Two hours ago I plugged in my iPod into USB on the G5, and at first I got the dead battery icon, but after a couple of minutes I got a flahing Apple icon, with a horizontal line on the screen flashing at random places. iTunes does not 'see' my iPod. Needless to say, Apple support website does not address the issue... Any help is appreciated! Thanks from sunny Florida

Try to connect your iPod with a window PC
Windows users having trouble with their iPods should locate a Mac user. In many cases when an iPod won't show up on a PC that it will show up on the Mac. Then it can be restored. When the PC user returns to his computer the iPod will be recognized by the PC, reformatted for the PC, and usable again. By the way, it works in reverse too. A Mac user often can get his iPod back by connecting it to a PC and restoring it.
Tips
a. It does not matter whether the format is completed or not, the key is to erase (or partly) the corrupted firmware files on the Hard Drive of the iPod. After that, when the iPod re-connected with a computer, it will be recognized as an fresh external hard drive, it will show up on the iTunes 7.
b. It is not a difficult issue for a Mac user to find a window base computer, for a PC user, if they can’t find any Mac user, they can go to a nearest Apple Shop for a favor.
c. You may need to switch around the PC and Mac, try to do several attempts between “Format” and “Restore”
http://discussions.apple.com/thread.jspa?messageID=2364921&#2364921

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Icon with think veticall line & three horizontal lines flashing green

icon with thick veticall line & three horizontal lines flashing green, what is the problem????

Thanks.
In the meantime I was looking more carefuly into some clips with horizontal lines (fences etc.)
You are right playback with full resolution takes care of most of the problem.
Thank you once again.
arikw

My iMac display occasionally flashes green and purple horizontal lines... is anyone else having this issue, or know of a fix?

The screen occasionally flashes purple and green horizontal lines across it. Then the buttons on the left side of my menu bar turn fuzzy, and when I click on them they become black rectangles with green and purple lines running thru them. The dock also has a hint of green and purple in it. And some of the shadows around application windows are just black outlines, instead of gradiating shadows. Is this happening to anyone else? Does anyone have a fix? I read about the other supposed graphics issues, but I think they're unrelated, or at least left unfixed by the firmware update.

All Macs come with a one year limited warranty.
If you purchased AppleCare, contact info > http://www.apple.com/support/products/
Why can't you use the Bluetooth keyboard?
According to the link I posted for the AHT..
"For some Apple computers that shipped with OS X Lion, if Apple Hardware Test cannot be found on the hard drive, an Internet-based version starts up instead."

Help ! Flashing folder icon with question mark when starting up

Hi, I have tried to restore my macbook pro 15 (2012 model with Yosemite OS X) to factory settings and wipe out the hard drive but on restarting it I now just get a blank screen with a flashing folder icon with a question mark on it. Any help/advice anyone I would be very grateful for ! Thanks, Mark

Something didn't install properly.
Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the
     computer and after the chime press and hold down the OPTION key until the boot manager
     screen appears. Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Yosemite: Reboot from the Recovery HD. Select Reinstall OS X from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
5. Reinstall Yosemite from Scratch:
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
How to Clean Install OS X Yosemite
Note: You will need an active Internet connection. I suggest using Ethernet if possible
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White screen with flashing file icon with question mark mean

What does this mean. We are getting a white screen with flashing file icon with question mark inside the file.

It almost certainly means it can't find a bootable volume (one with OS X on it).
Which means most likely you will have to find your original system installation DVD and install it. Then you should figure out what caused the problem.
Read this to diagnose it before resorting to reinstalling the OS:
http://support.apple.com/kb/TS1440
Excerpt:
Additional steps
If your Mac still starts to a flashing question mark, follow the steps below. If any step resolves the issue, you don't need to continue to the next one.
Select your Mac OS X startup disk with Startup Manager by restarting and holding the Option key. After your Mac starts up, restart again to verify that the flashing question mark does not appear.
If the issue persists, insert your Mac OS X installation disc. Be sure to either use the disc that came with your Mac, or, if you installed a later Mac OS X version from disc, use the newer disc.
MacBook Air note: On a MacBook Air, there are two options for starting up from Mac OS X media: Either connect a MacBook Air SuperDrive to the MacBook Air via the USB port and restart the computer, holding down the C key during startup, or use Remote Install Mac OS X to startup from a system software DVD that's located on a partner computer. Once started up from Mac OS X media, skip to step 3.
Restart the computer, then hold the C key during startup.
From the Utilities menu, choose Disk Utility. Don't click Continue.
Select your Mac OS X disk (named "Macintosh HD" by default) in the left side of the Disk Utility window.
Click the First Aid tab.
Click Repair Disk to verify and repair any issues with your Mac OS X startup disk.
After repairing the disk, try to start up normally.
Important: If Disk Utility finds issues it cannot repair, you may need to back up as much of your data as possible (or use Time Machine to back up to a different disk), then erase the disk and reinstall Mac OS X. You should back up important files and data before erasing a drive. Erasing deletes everything on the hard disk (including things on your desktop). Also, you can install Mac OS X onto an external disk, start from the external disk, and use Migration Assistant to transfer items from your usual internal Mac OS X startup disk to the external disk, then erase the internal disk and reinstall Mac OS X.
If the issue persists, and Disk Utility didn't find any irreparable issues, quit Disk Utility, quit the Installer, select your disk when prompted, and restart.
If the issue continues, reset PRAM. Note: After resetting PRAM, if the computer starts up normally, reselect the startup disk in the Startup Disk preferences.
If none of these steps resolve the issue, start up from the Mac OS X Installation disc and reinstall Mac OS X.

MacBook won't start - shows flashing folder icon with question mark

When I attempted a Spotlight search, my MacBook froze. I shut it down, and when I start again I get the sound, the blue screen, and then a flashing folder icon with a question mark. I tried starting with Option pressed down; didn't work, and now I don't even get the flashing folder icon, just the blue screen. Any suggestions?

The flashing folder with question mark means the computer can't find a working OS on the computer. This may mean your hard drive has failed.
Try holding the Shift key while starting up the machine. This puts the machine into Safe Mode.
If you have your install discs, insert Install Disc 1 and start up the computer while holding down the C key. When the Installer has loaded, choose a language. From the Utilities menu, choose *Disk Utility*. Does your hard drive show up here? If so, click on its icon (the one with manufacturer name & capacity, NOT "Macintosh HD"), and then click on the *Repair Disk* button.
If booting in Safe mode doesn't help or you don't have your install discs, you need to bring the computer to an Apple store and have the folks there look. If Disk Utility doesn't list your hard drive, it has very likely failed and will need to be replaced. If your machine is out of warranty, you're better off replacing it yourself, as it's very easy to do.
~Lyssa

What does a white screen with a flashing folder icon with a question mark in it mean?, what does a white screen with a flashing folder icon with a question mark in it mean?

My computer seemed locked up, nothing would open. I had to force quiy everthing. I tried to normally shut it down and it wouldnt shut down. I held the on off power switch. When I tried to turn it back on It stays tuck on the white screen with a flashing folder icon with a question mark in it . Has my hard drive gone bad?

Reboot the computer holding the option key down, you will get a selection of your OS X internal boot drive or the perhaps the disk you stuck in.
You can choose what you can boot into.
If it's the hard drive and it's there, then select that and head to System Preferences and change the startup disk to the hard drive, you shoudl be fine.
If only to disk, then select that and run Disk Utility > Repair, If your drive doesn't appear on the left, it's likely dead.
Repair the drive and reboot holding the Shift key down, see if that fixes things some more and reboot again normally.
https://discussions.apple.com/community/notebooks/macbook_pro?view=documents

Flashing File icon with '?' does NOT mean your HDD is shot!

A week ago my computer failed and started up showing the flashing file icon with the '?' at startup. I ran all the diagnostics that every forum told me to. I even reset the PRAM. So I went to the mac store and they told me it was probably the HDD but that it could be just the SATA cable but there was no way to tell unless I had another HDD. So I went out and bought a 500GB for $65 and installed it. Sure enough the problem was only my SATA cable. Apple sold it and installed it for only $32. They also installed OS X for free.

I'm currently having the same problem. Flashing ? folder..troubleshooting..etc. According to everything I've read, it seems like my HDD is shot. When I boot from my OSX disc, I can't detect the HDD to install, restore, or anything. Yet, I've taken the hard drive out and it spins normally when I boot or launch the OSX disc. Do you still think it could just be the SATA cable?

What does a flashing folder icon with a "?" inside mean?

What does a flashing folder icon with a "?" inside mean?

Question (?) Mark, Blinking Folder, or Gray Screen at Startup
These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
A flashing question mark or globe appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by one or more of these:
a. Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
b. Boot drive's directory has been corrupted - Repair with Disk Utility.
c. Critical system files are damaged or deleted - Reinstall OS X.
d. The disk drive is physically non-functional - Replace the hard drive.
Note that the information I have provided is what Apple recommends, If other users suggest different solutions than found here, then be sure what they recommend does not impact on your warranty, if any, or ability to get continuing Apple service.
Please don't start removing drives or changing cables unless you know what you are doing and have exhausted other non-invasive alternatives outlined here. If you perform any work yourself that is unapproved by Apple, then you will void any warranty you may have and lose all further Apple Support.
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD. Simply boot from the Recovery HD to perform the above.
Reinstall Snow Leopard Without Erasing The drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Reinstalling Lion/Mountain Lion Without Erasing The Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Startup problem flashing folder icon with a question mark

Hello All,
My macbook (Intel Core Duo) suddenly stopped working. Ater I push the powerbutton, I hear a clicking noise(about 1/second) coming it seems, from the cd-rom drive. Then after about 20 seconds, the clicking noise goes away and I get a flashing folder icon with a question mark (?) in it. And it just sits there for ever. I tried all the troubleshooting tricks mentioned in the user's guide, like taking out the battery and pressing the power key for 5 seconds, pressing command and control keys while pushing the power button e.t.c. I also ran the Apple Hardware Test program and it mentioned there was no problem with hardware. When I try to install the operating system with Mac OS X CD1, I go through the steps and there is no destination volume (my Macintosh HD is not seen) to install on. I appreciate any help on this matter. Thanks a bunch.

Chances are if you do not see your MacBook's HD then your HD has crashed and you will need to contact Apple (or take to an Apple Store or reseller) to have it replaced.
I hope it's still under warranty and I hope you have been backing up to another device.
This happened to me about a month ago and Apple replaced my HD and I had back ups (although I wasn't backing up religiously) so I didn't loose everything. When I picked up my MacBook with it's new HD, I also bought a new firewire external drive and back up nightly.
Good Luck - Call Apple.

Hi . i have Intel based iMac. i erased whole hard disk. now it flashes folder icon with question mark... i have no internet or orginal dvd.... i want to clean install any mac osx..friend got mac book pro and osx in dmg format . what are my options?

hi . i have Intel based iMac. i erased whole hard disk. now it flashes folder icon with question mark... i have no internet or orginal dvd.... i want to clean install any mac osx..friend got mac book pro and osx in dmg format . what are my options?

On your friend's computer with an internet connection, log into the Mac App Store with your ID and download Yosemite from the Purchases section of the Mac App Store. The make a bootable USB install media using
http://liondiskmaker.com/
Then boot from that on your computer and install
You need an internet connection to install via Recovery mode

Flashing File Icon with Question Mark Upon Start-Up

Today when I went to use my computer (which was already on) it went blank and then came up with a gray screen with a flashing file icon with a question mark in the middle of it. I have already troubleshot things with several forums online and nothing has worked. I have tried to restart in Safe mode, single user mode, verbose mode, and tried to get on using my option key which got me to an internet login screen finally. I tried to log in and eventually got to an apply.com/support screen with -1007f underneath. I am not 100% which operating system I am on. I know that it is Mac OS X and pretty recent. Please respond if you can help!

Reset the SMC and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM
To boot from DVD:
Press C during startup
Start up from a bootable CD, DVD, or USB thumb drive (such as OS X install media).

I restarted my computer, but the screen only shows a flashing folder icon with a question mark. What to do?

I restarted my computer, but the screen only shows a flashing folder icon with a question mark. What to do?

It means that the system boot directory can't be found.
See this support article for suggested actions
Also see this discussion.

Flashing folder icons with question mark

After reading through the forums I've found a few discussions and users that have similar problems as me but haven't seen anything that deals directly with my issues.
After upgrading to Leopard last night, it ran sluggishly for about 15 minutes. I got impatient and decided to restart. While trying to restart it froze, so I just shut my powerbook down. When I tried to boot back up I got the "flashing folder icons with question mark", I've since found out that it isn't finding any type of drive to boot off of. I reset the pram, tried to reboot with the same result. Tried to boot up using cmd-s but still got nothing but flashing folders. Booted up from the Leopard install disc to try and do an archive and install and it said it couldn't upgrade because it couldn't find tiger on my machine. So I booted from the Tiger install discs to try and re-install tiger again. Tiger cant find my HD to install on; I'm thinking this may be due to Leopards install. I ran disk utility and it couldn't complete the verifying process. I got this "Error: The underlying task reported failure on exit."
After work I'm going to try to boot up in target mode to pull any data i can and try erase my HD and install from there.
To me it seems like a HD issue. Anyone have any thoughts?
Thanks in advanced.
-Chance

Chank wrote:
After reading through the forums I've found a few discussions and users that have similar problems as me but haven't seen anything that deals directly with my issues.
After upgrading to Leopard last night, it ran sluggishly for about 15 minutes. I got impatient and decided to restart.
The "sluggishness" is perfectly normal. It's well-known and it is not an issue.
You should have waited for spotlight to finish indexing.
You may have broken some links by forcing a shutdown while things were still being setup.
Which install method did you use, upgrade, archive or erase?

Installed hard drive in bay 2 now get flashing folder icon with ? mark

Mac Pro 1.1, OS x 10.7 - installed storage hard drive in bay 2 now get flashing folder icon with ? mark

found the answer - hold down opt/alt key, reboot, choose drive with os installed. it worked.

Flashing Apple icon with horizontal line flashing at random on screen

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