Is anyone else Mac freezing since mountain lion upgrade

Has mountain lion screwed anyone else's iMac up?

Try doing some basic maintenance.
Do a backup, using either Time Machine or a cloning program, to ensure files/data can be recovered. Two backups are better than one. 
Run Disk Utility/Repair Permissions (Applications/Utility Folder). Run until it reports no errors. If there is a recurring error, see the article on what permission errors can be ignored. 
Disk Utility
Disk Utility Repair Permissions You Can Safely Ignore 
Restart the computer holding down the command - option/alt - P - R keys before the grey screen appears. Continue to hold until you hear the startup chime for the second time.
Reset NVRAM/PRAM
Try an SMC reset. The article covers when this is required, but doing this will not affect anything.
Reset SMC
General Maintenance Recommendations
Maintenance Quick Assist
Maintaining Mac OS
If you are still experiencing problems after that post what is happening (specifics) and someone can try to help you.

Similar Messages

  • Imac freezes since mountain lion upgrade, i set to never sleep and then it is ok. any ideas what is going on?

    This may be the same issue as some other discussions but I have a few different circumstances. I upgraded to Mountain Lion a few weeks ago and all seemed to be ok. Then I got an upgrade notice for Itunes last week and installed the update. Since then My mac started freezing after coming out of sleep mode. The mouse was active but when i selected programs from the dock the icons would just bounce and nothing would open.The only way to revive it was to do a restart with the power button. Then the system would be fine until it went into sleep mode .After reading through several disussions it seems many people are having similar issues with very few fixes to the problem. I am not very savvy on mac O/S so I am in the dark as to where to begin to troubleshoot this problem. Since the freeze ups always occur after coming out of sleep mode I set my computer to never sleep which has worked to stop the freezing but I am not sure how good it is for my system to be running all the time. I would appreciate any input on this problem. My Imac is a 2008 intel with 3 gig ram

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login. 
    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
    Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
    When you see the gray Apple logo, release the shift key.
    If you are prompted to log in, type your password, and then hold down the shift key again as you click  Log in.
    *Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.  The next normal boot may also be somewhat slow.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

  • Bridge won't open since Mountain Lion upgrade.

    Why won't Adobe Bridge open since Mountain Lion upgrade? I'm running CS4. PS works. Help.

    contact iBank support: http://www.iggsoftware.com/support.php. Also, according to roaringapps.com, it has some problems with ML : http://roaringapps.com/app:155

  • My scanner (Epson V300) does not work since mountain Lion upgrade.

    My scanner (Epson V300) does not work since Mountain Lion upgrade. I updated the drivers,I can get it to work one time when I reboot the iMAC it will function (scan) one time and than not again until I reboot. Help!!!

    Try trick #5, at > Eight amazing Image Capture tricks | Macworld

  • My Imac 27 keeps freezing since Mountain Lion installed

    Is anyone else have freezing problems I have 8gbram i7 2.8ghz no help from tech support.

    Morning, glad things are going ok .
    I haven't re-installed Sophos yet. The Sophos forum are saying there's still an issue, so until I hear that they have resolved it, I'm leaving it uninstalled.
    Under Lion, it used to run in the background with minimal resources being used. I hope Sophos can get the issue resolved ASAP for Mountain Lion.

  • IMac freezing after Mountain Lion Upgrade

    After upgrading my iMac to Mountain Lion it is freezing at least one a day. Sometimes the screen get messed up right before getting frozen, something like this video (from another guy), but they move from top to bottom to me.
    I never had this problem before, it started right after the Mountain Lion upgrade.
    Anyone with the same problem? Any ideas?

    Permissions Repair:
    Go to applications then to the "other" folder then go to disk utility, on the left hand side you will see a white box.  Select the second option, usually called "mac HD" with that selected click on "repair permissions" in the center towards the bottom of the screen.  Wait for it to complete, then see if this fixes the issue.
    PRAM Reset:
    1- Ensure the machine is powered off.
    2- Locate the following keys on your keyboard in preparation for Step 4:
    ‘command’ – ‘option’ – ‘P’ – ‘R’
    3- Press the ‘power on’ button.
    4- Immediately – and before the grey screen appears – hold down ‘command-option-P-R’ all together.
    5- Keep them held down until you’ve heard the start-up chime twice. After you release them you should hear it again, and hopefully your Mac will boot up normally

  • ATV2 Home Sharing Drops Since Mountain Lion Upgrade

    I've found some stuff close to my issue, but really nothing addressing my issue.  I have 3 Apple TV 2's.  When running my 27" Mac on Lion, everything streamed wonderfully.  I have a BIG router capable of handling movie streaming, so the network should NOT be the problem.  After installing Mountain Lion, all three of my Apple TV's have been getting dropped from Home Sharing during the middle of a media stream.  It happens with regularity with music and movies.  Even Netfilx streams drop because Home Sharing drops out.  The only way to fix it thus far is to disconnect and re-connect Home Sharing at the 27" Mac, where the streams originate.  I'm certain this problem is due to the Mountain Lion upgrade.  Is there a fix or do I need to wait for Apple to push something out to us?

    For anyone else having the "white screen" issue with youtube, and/or yahoo issue. I seemed to have repaired the issue. I turned the parental controls off for both of my kids accounts, restarted my Mac, and the problem vanished.
    I also turned the parental controls back on after this, restarted the computer, and the problem came back.
    *** This is 100% a Parental Control/Mountain Lion glitch. Hopefully Apple knows and is working on a solution. The sooner they fix it, the sooner I can turn the parental controls back onto my kids accounts.

  • Acrobat 9 fails to recognize (scanner) Epson Artisan 730 after Mac Pro and Mountain Lion Upgrade

    I had no problems scanning from the Epson Artisan 730 all in one until I upgraded my Powermac G5 to a mid-2010 Mac Pro with Mountain Lion 10.8.  The printer is installed with most recent drivers from Epson (the install disk will not work on 10.8 anyway).  I can scan directly from the Print and Scan system preference under the scan tab of the printer and it prints fine from Acrobat.  When I go to Document -> Scan to PDF, it brings up a dialog box in which the first input is box is Scanner:  "Please select a device" with up and down arrows on the right.  When I click on the up and down arrows, there are no selection options other that "Please select a device" with a check mark next to it.  This printer is wireless, as is another Canon which also has a scanner and neither appear as available.  Very frustrating.  I have repeated the instalation process (for the Epson downloaded driver utilities) and it just is not seen.
    If anyone has any workarounds or solutions, I would be grateful.

    1strail wrote:
    Of course now I have a red badge on the App Store that is asking me to update the Epson driver.  I wonder if that will blow out the TWAIN driver.  It's epson14333.dmg. 
    No.  Your TWAIN drivers are separate than the Image Capture Device drivers that would be installed by the printer driver update.
    Also, no way of getting rid of the badge notification in system preferences.  App store is not listed.
    There is no law that you must update software just because it is available.  There is no way to get rid of the red badge, but you don't have to do the upgrade.

  • Since Mountain Lion Upgrade is my Internet connection very slow, Since Mountain Lion Upgrade is my Internet connection very slow

    Why is Safari so slow after Mountain Lion upgrade?

    I have a home Optimum wifi network with Boost connecting to an Airport, with a second Airport extending, and an Airport Express extending. I have a MacBook Pro, last year's model, two iMacs, a year old each, and an older iMac. (If necessary I can get all the models etc, but I just want to express the problem). The two new iMacs and MBP are running Mountain Lion. The older Lion.
    Since upgrading to ML my connection speed both over the wifi and directly connecting to the router has dropped from 30-50 down and 5 up to between 1-4 down and 4 up. I have had the cable folks here to test lines. We've swapped out the modem with a new one. I bought a new netgear N600. Everything led to the same result.
    Here's the odd part. When restarting the modem and plugging it directly into the powerbook, initial tests show 30-50 up and 5 down. But once you reconnect to wifi, lose speed, the re-connect directly to the modem the slowness persists directly connected to the modem.
    So I start suspecting Mountain Lion. BUT the older iMac cannot be upgraded to Mountain and is still running Lion and has the same issue. The equipment is in the same place it's always been. We've added no electronics that would be interfering with signals.
    Everyone is stumped and looking suspicously at the computer and OS. Please help. I'm beginning to hear the bing bong bing bong of dial up in my head.

  • Mac Restarting after Mountain Lion Upgrade

    My mac keeps rebooting itself saying "your computer was restarted because of a problem"
    It's only started happening after mountain lion upgrade, someone please help
    This is my first post in this forum btw

    Try reinstalling Mountain Lion:
    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 Pro freezing since Mountain lion installed

    I'm getting freeze ups on my Mac Pro since downloading Mountain Lion...any way to fix this or get my Lion OS back? 

    Morning, glad things are going ok .
    I haven't re-installed Sophos yet. The Sophos forum are saying there's still an issue, so until I hear that they have resolved it, I'm leaving it uninstalled.
    Under Lion, it used to run in the background with minimal resources being used. I hope Sophos can get the issue resolved ASAP for Mountain Lion.

  • Mac Calendar won't sync since Mountain Lion upgrade

    Since updating my Mac to Mountain Lion, the Calendar won't sync to iCloud. My iPhone and iPad calendars are syncing fine with the same account. The error message is "The server responded with an error. Calendar couldn't connect to p01-caldav.icloud.com."
    Getting this error message on both Macbook Pro and iMac machines.  Checked all the basic settings.
    Would appreciate your help, please.

    contact iBank support: http://www.iggsoftware.com/support.php. Also, according to roaringapps.com, it has some problems with ML : http://roaringapps.com/app:155

  • Mac pro not sleeping since mountain lion upgrade from Lion

    Hi, just wondering if anybody was having problems with their mac not sleeping after upgrading to Mountain Lion. The screen no longer blanks either, screensaver just runs until I move the mouse etc. all was fine under Lion, tried various things, stopping program's etc to no avail. I can force sleep manually just not happening when set to in energy saver settings. Machine is a mid 2010 mac pro, would of thought it shouldn't of have any issues running ML! Odd how the screen power down isn't working either. I'm out of ideas, must be a bug of some sort.

    Problem turned out to be a sidewinder USB joystick. Once unplug sleep resumed as scheduled.

  • Problems with iMac since Mountain Lion upgrade

    So , several problems that I have experienced since upgrading to Mountain Lion.
    1. When I "log off" off my iMac from the top left "apple" symbol, I get the rainbow wheel of death.
    2. When accessing YouTube home screen or yahoo in Safari, the page is a white screen. Nothing more, nothing less. 
            *  I have been reading some people saying that this happens to them too, but only when using an account with parental controls.
    3. Hard drive "grinds" incessantly.
            * I have never even seen the rainbow wheel or heard my hard drive grind on my iMac untill this upgrade.
    Anybody know of any solutions, or also having these issues?

    For anyone else having the "white screen" issue with youtube, and/or yahoo issue. I seemed to have repaired the issue. I turned the parental controls off for both of my kids accounts, restarted my Mac, and the problem vanished.
    I also turned the parental controls back on after this, restarted the computer, and the problem came back.
    *** This is 100% a Parental Control/Mountain Lion glitch. Hopefully Apple knows and is working on a solution. The sooner they fix it, the sooner I can turn the parental controls back onto my kids accounts.

  • Magic Mouse tracking poorly and losing Bluetooth connectivity since Mountain Lion upgrade

    Since upgrading to Mountain Lion I have experienced frequent and inconsistant tracking from my Magic Mouse. It will work fine and then out of no where, and without any connection to a particular app or process (that I can identify) it will begin stop moving or move in a very jittery fashion. I'm also experiencing Bluetooth connection loss with the mouse from time to time out of nowhere. I cleaned the mouse and even went to so far as to replace it with another, brand new Magic Mouse and have seen the same problem.
    I have also tried resetting PRAM and SMC.
    Anyone else experiencing this or a similar issue? Have any suggestions of things to try?
    Mac Pro (Early 2008)
    Processor  2 x 2.8 GHz Quad-Core Intel Xeon
    Memory  26 GB 800 MHz DDR2 FB-DIMM
    Graphics  ATI Radeon HD 5870 1024 MB
    Software  OS X 10.8 (12A269)

    Well , regarding of this issue i did some tests and i've reached to some conclusions to fix it.
    Steps
    1. turn off the magic mouse
    2. remove batteries
    3. put everything back and power on.
    4. pair your mouse again if you remove it from the tab
    5. leave the option discoverable marked down
    6. add to favorite from bluetooth menu (you will see a red heart with yes )
    7. should work for now
    Test 1 : Mac mini 2010 with OSX Lion 10.7.4
    Test 2 : MBA 2012 with OSX Mountain Lion 10.8.1
    Conclusion : still have a bug not showing the right battery level (only 100%)but if you use "iStat" widget you will see the real level.
    Magic mouse doesn't have, unfortunatelly the multipoint technology so if you use on multiple cpu in the same area can create instability (leave only one of a time and remove it from the bluetooth tab on other cpu)
    I belive its working only using step 6, but to be sure

Maybe you are looking for