TS1440 iMac freezes, no choice but to hard shutdown, turn back on, white screen with folder and question mark appears

Hi,
so my iMac (it's not the most recent iMac if it makes any difference, and I'm running mountain lion 10.8.3) often freezes and I do a hard shutdown as I cannot force quit the applications or click on the apple in the top left to shut it down. When I come to turn it back on, I'm greeted with a white screen, in the middle of which is the dreaded folder with the flashing question mark in it. I've noticed that just before a freeze occurs, it starts running slowly and if I try going onto Facebook for example, it says that it cannot connect to facebook.com despite the internet connection being fine as I can browse things on Google. I have also noticed that before a freeze, in Finder, in All My Files, no files show. I went through this http://support.apple.com/kb/TS1440 and the problem still persists. Sometimes it does load fine if I shut it down again but when I eventually open up safari, if I had been on youtube for example, it will reload the page from a few videos before and not the one I was on when it actually froze.
Any help would be hugely appreciated,
Thanks
Side note: When it says I must choose a community in order to post this, it only gives me a choice of 3 which are Mac OS X v10.4 Tiger, v10.5 Leopard, v10.6 Snow leopard, so apologies if this is posted in the wrong place - is there any way to get it moved to the correct place?

Yes,easy fix but difficult to buy,think you can get them from the states (off the top of my head about £15).When you go to the apple store,tell yhem what you suspect and they will test if it is the cable or if its the hard drive,dosn't take that long and it's free.If you know what to do you can take the back off and with strong magnifying glass you might be able to see the fray look at the bend of the cable.

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===========
Your profile is a complete blank!!!!
When posting in Apple Communties/Forums/Message Boards.......It would help us to know which Mac model you have, which OS & version you're using, how much RAM, etc. You can have this info displayed on the bottom of every post by completing your system profile and filling in the information asked for.
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Thanks for your reply
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(why apple stop Mac OS X Install disc ??? it is not a good idea )
Check your cables and power source
It is ok
Remove third-party RAM and internal hardware
Did not upgrade
Is there another fixes in case i couldn't download Lion os

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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 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.

Mac book is starting up funny. I have a flashing folder and question mark or just a grey screen. IT at university is backed up all week and said it's the hard drive! Ugh need help in class now will be calling ASAP! Help please.

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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 appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by:
Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
Boot drive's directory has been corrupted - Repair with Disk Utility.
Critical system files are damaged or deleted - Reinstall OS X.
The disk drive is physically non-functional - Replace the hard drive.
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:
Boot From 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.
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.

My iMac (OS X) won't boot up. All I get is a blank screen with a blinking question mark (?). I've tried resetting the PRAM, but that doesn't help. What do I do?

My iMac won't boot up. I get only a blank screen w/question mark (?). I tried resetting he pram, but that didn't help. What do I do?

Thanks. Did a safe boot, repaired disk permissions, and took your advice on the combo update.
Running perfectly fine now, if not slightly faster.
For the benefit of others this link: http://support.apple.com/kb/TS2570 will get you to the Apple Support article that covers safe boot and parameter reset in OS 10.4, 10.5, 10.6.
Thanks for all your help and advice.

My imac wont get past the white screen with logo and rotating wheel

i was trying to turn on my imac when suddenly ot took forever on the white screen
i tried taking off everything connected to it-no change
i tried a safe mode after a few minuted a heard the second chime then a blinkin
question mark folder showed up so i turned it off again and tried a nvram/pram reset but it still stuck on the white screen
is it time to visit the apple store or is there something else i should try?

A flashing question mark or globe appears when you start your Mac
Reinstall Lion, Mountain Lion, or Mavericks without erasing 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
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 then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Lion, Mountain Lion, or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

My MacBook is 5 years old. Until recently, I had no problems. I had a CD that got stuck in the drive and I was able to remove it. But now there is a grey screen with a file folder and question mark in the middle. How do I fix this?

I have tried rebooting the MacBook several times as well as resetting it. If I turn it off and then turn it back on while holding "option" a mouse appears on the screen but nothing else. This started earlier today when the screen froze and I had to restart the computer (with the CD still in it). I have not been able to get back to the computer since.

That folder with the question mark icon means that the MacBook can't find the boot directory. That can either mean it can't find the hard drive or the operating system files on the hard drive are somehow corrupted or damaged.
If you don't have your install disks you can get the 10.4 gray disks by calling AppleCare. 1-800-APL-CARE (1-800-275-2273) They can send them to you for about $16 per disk plus S & H. Just give them your serial number and they'll know which ones you need. With the original disks you also get the iLife that was current when your MacBook was bought included on the #2 disk.
Or if you don't have any files you want to recover from your hard drive you can get Snow Leopard for $29 if you have at least 1gb of RAM and a working DVD drive. http://store.apple.com/us/product/MC573Z/A?mco=MTY3ODQ5OTY You would then erase and reformat your hard drive and install Snow Leopard. You won't need the box set unless you want the latest iLife and iWork. If you only want iPhoto or other single apps you can get them from the App Store in 10.6.6. iPhoto, iMovie and Garage Band for $15 each and Pages, Keynote and Numbers for $20 each.
If you have files you want to recover you can get a larger hard drive and put your old hard drive in an external case. After you install the Mac OS on the new hard drive you can plug in the old hard drive in the external case by the USB connection and try to access it that way.
To buy a hard drive try Newegg.com http://www.newegg.com/Store/SubCategory.aspx?SubCategory=380&name=Laptop-Hard-Dr ives or OWC http://eshop.macsales.com/shop/hard-drives/2.5-Notebook/
Here's instructions on replacing the hard drive http://creativemac.digitalmedianet.com/articles/viewarticle.jsp?id=45088
Here's a cheap SATA external hard drive case on eBay http://cgi.ebay.com/USB-2-5-SATA-HDD-HARD-DRIVE-EXTERNAL-ENCLOSURE-CASE-BOX-/120 636286623?pt=PCC_Drives_Storage_Internal&hash=item1c167ba69f

My imac wont turn on anymore. it only shows a picture of a folder and question mark

I cant get my imac to turn on. It will only show a folder with a question mark in it,.

Your Mac can't find any bootable device. That could be because of two things:
1. The PRAM "forgot" the startup disk.
2. The hard disk is damaged.
First, press Option key while your Mac is starting and check if you see the OS X partition. If you see it, choose it and when OS X has booted up, open System Preferences > Startup Disk and select the OS X partition.
If not, the hard disk is damaged. If you have OS X Lion as you indicate, press Command, Option and R keys while your Mac is starting to start into Recovery. Then, open Disk Utility, select Macintosh HD in the sidebar and repair the disk. If it doesn't work, take the Mac to an Apple Store.
If you didn't make a backup, use DiskWarrior to recover your files. It could not work on some ocassions.
Also, there's a problem with the 1 TB Seagate iMacs hard disks sold between October 2009 and July 2011 and they are being replaced for free. Check if you can get replaced the hard disk for free > http://www.apple.com/support/imac-harddrive

HELP! iMac not starting up ... blue screen with folder and blinking ?

my imac is not starting up. when i turn on the computer, i get a blue screen with a blinking folder icon of the finder and a black question mark. i can't move anything or type anything.
i have tried powering down and powering back up with holding down the option key, but all i get is a screen with two buttons with a curved arrow and a straight arrow. however, i can't click any of them!
i don't know what to do and i need major help! can anyone help me? i don't want to spend the $49 again for a simple fix.

For starters, follow the steps in this Apple KB Article Post back if you have any questions or things still don't work out.
Clint

Freeze white screen with folder with question mark after updates?

I have updated always my macbook when i have time.Im presently on board the ship trading worlwide.My problem is that i havent back up my files coz i was so confident that it wont happen on Macbook.I sell my Vaio for it.
After reading all the discussions which are similar to my problem.I'm in doubt of what to do either I re-install the whole OS-X or I will have to wait for a Apple specialist to solve this problem?I'm really just a plain user.
After i've done whats stated in the manual this are the messages that pops up:
- need to be repaired ( my hard disk )
- error: the underlying task reported failure on exit.
- 1 HFS volume checked , volume needs repair.
have tried to repair but no success to it.
please help me to save my files.what isa the best thing to do.
I'm in the middle of the ocean.
thanks

Hi albertspeed_66, and a warm welcome to the forums!
You have your install disks with you and used that I guess?
Without a Tiger Disk, try fsck...
To use fsck, you must run it from the command line. Unlike using your mouse to open an application to do something, you'll need to type a text command at the prompt (#) to tell fsck what to do. The Terminal application (/Applications/Utilities) and single-user mode are two examples of command-line interfaces in which you can type such commands. To use fsck:
1. Start up your computer in single-user mode to reach the command line. Hold CMD+s keys down at bootup. Note: If necessary, perform a forced restart as described in the Emergency Troubleshooting Handbook that came with your computer. On desktop computers, you can do this by pressing the reset/interrupt button (if there is one) or holding down the power button for several seconds. On portable computers, simultaneously press the Command-Control-power keys. If your portable computer doesn't restart with this method, you may need to reset the Power Manager.
2. At the command-line prompt, type /sbin/fsck -fy
3. Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found: ** The volume (nameofvolume) appears to be OK  If fsck found issues and has altered, repaired, or fixed anything, it will display this message: *** FILE SYSTEM WAS MODIFIED ***   Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).
4. When fsck reports that your volume is OK, type reboot at the prompt and then press Return.
http://docs.info.apple.com/article.html?artnum=106214
Then Safe Boot , (holding Shift key down at bootup), off the HD & use Disk Utility from there to Repair Permissions, reboot once more.

I have an iMac, purchased in 2007. When I turn it on I am getting a grey screen with a flashing question mark

Anyone know what I need to do

A flashing question mark indicates the startup volume cannot be found. Follow the link above for troubleshooting, however be prepared for a failed internal hard drive. If I am correct you will need to take it into an Apple Store or AASP to have the HD replaced.

TS1440 iMac freezes, no choice but to hard shutdown, turn back on, white screen with folder and question mark appears

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