After downloading Mountain Lion neither of my Macs play DVD videos.

My question is... Is there a known issue with the "DVD Player" app with Mountain Lion. Because every since I installed ML neither my iMac or Macbook Pro will play store bought DVD videos, but the drives do recognize music CD's. Is there driver issue or some kind of a fix or patch or something to get my "DVD Player " app working again.
When I install a DVD the app opens and closes unexpectedly, then sends a message to Apple. I would really like this to be fixed.
Jason Wirtz

I've had the exact same problem. I'm sure Apple is working frantically *cough* to get this taken care of rather than devoting their entire staff to correcting errors on Apple Maps app on the iPhone 5.

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After downloading Mountain Lion, I can no longer print! My MAC see's the printer, even nozzle check works, but cant print anything!!

after downloading Mountain Lion, I can no longer print! My MAC see's the printer, even nozzle check works, but cant print anything!!

sorry!!! It is a Epson Stylus Photo PX810FW.
Have made sure all ML / Apple updates are done. Checked the Epson site and there are no updates for 10.8

Hii i heve mini mac model no. A1347 after download mountain lion it's not turn on

hii i heve mini mac model no. A1347 serial no. COxxxxxDD6H
after download mountain lion it's not turn on before whit lion it was good
now its open
"your computer restarted because of problem .press a key or wait a few sconds t continue staring up"
and its go again and again
<Edited By Host>

Startup holding down Command and R it will go into utilities, go into disk utility and repair the disk and repair disk permissions. Tell what happens

Keep getting this pop up box after downloading Mountain Lion ( had Snow Leopard) time profile failure .... how do I fix it ??

Keep getting this pop up box after downloading Mountain Lion ( had Snow Leopard) time profile failure (in a small box).... how do I fix it ??
Pleeeease can any one help i??? t pops up all the time and I have have to confirm in OK box.
I´m not a PRO on a MAC

Can you provide a screenshot? I haven't ever heard of such an error. I suspect it may be third-party software of some kind.

After downloading mountain lion, my exchange email is no longer recognized. I have deleted it and added it again.

After downloading mountain lion, my exchange email is no longer recognized. I can not receive or send mail from the exchange address on my iMac, but it does work on my iPad and iPhone.

Tried resetting SMC ?
http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".

After downloading mountain lion the internet does not start automatically after start or restart but if I use diagnostics it starts is there a simpler solution

After downloading mountain lion the internet does not start automatically after start or restart but if I use diagnostics it starts is there a simpler solution?

Extensions can sometimes be the cause of problems. If the problem does not occur in Safe Mode, then you can disable your extensions one-by-one until you find out which one is causing the problem. See [[Troubleshooting extensions and themes]]

Mail quits on startup, not on a guest account. This only happened after downloading Mountain Lion. What do I do to fix this?

A couple of days after downloading Mountain Lion (10.8.3) Mail quits on startup. This doesn't happen on a quest account. I understand I'm not the only one with this problem (understatement). Has anybody found a solution yet??

Launch the Console 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. Click Utilities, then Console in the icon grid.
Step 1
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter the name of the crashed application or process in the Filter text field. Select the messages from the time of the last crash, if any. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V).
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.
Step 2
Still in the Console window, look under User Diagnostic Reports for crash reports related to the process. The report name starts with the name of the crashed process, and ends with ".crash". Select the most recent report and post the entire contents — again, the text, not a screenshot. In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.) Please don’t post shutdownStall, spin, or hang logs — they're very long and not helpful.

The app store will not load after downloading Mountain Lion.

The app store will not load after downloading Mountain Lion. Anyone else having this problem. It works on the the admins acount on the computer but none others. All of the parnetal controls are off and it doesnt work. All i get from the app store is this.

Yes. I have done everything. restarted, made sure there are no funny blocks or no permissions

After Downloading Mountain Lion IMAC is having bluetooth sleep issues.

After downloading Mountain Lion my 21" IMAC is fine untill it goes into sleep mode for an extended period of time. When I try to wake the IMAC with the Bluetooth keyboard or mouse it will not wake up. I have to hold the power button down for 5 seconds. This does not happen untill the IMAC has been in sleep mode for a wihile (I don't know the amount of time) but if I am at the IMAC and it goes into sleep I and wake it with know problem it has to sleep for a while for the issue to kick in.
Thanks

Open Disk Utilities (Applications - Utilities - Disk Utilities) and run Repair Disk Permissions and then restart the computer and retest.

Loss of Magic Mouse function after downloading Mountain Lion

I have lost the "two-finger swipe" back to previous screen function of my Magic Mouse after downloading Mountain Lion. The vertical scroll function still works, only in the opposite direction. Weird! Any ideas?

You must have upgraded from Snow Leopard. The scroll direction has changed to "natural" where you push content in the direction you want it to go, as thought you had you finger on the screen. You can change it back the other direction In System Preferences > Mouse > uncheck Scroll direction: natural.
The swipe back a page is now a one finger swipe. You can change that as well in System Preferences > Mouse > More gestures tab. Click the disclouse triangle for the choices.

White screen and freeze when trying to restart after downloading Mountain Lion 8.2 upgrade. Mac will not shutdown or restart without freezing on whitescreen.

Downloaded Mountain Lion update 10.8.2 last night. All went well until the message after the download – restart your mac to install this update. The screen went white and the machine didn’t restart. After waiting for quite a while, I shutdown using the main power button. Restarted iMac later and it opened in 10.8.1 and the iTunes icon informed me that I had an upgrade to 10.8.2 that required me to restart the machine to install the upgrade. I did this and again, the screen went white and froze when trying to restart. Rebooted thinking I might be OK to run in 10.8.1 and ignoring the update but when I tried this the Mac worked fine but when I came to shut down I got the white screen freeze thing again. Does anyone have any easy-to-follow solutions for this or will I have to shut down using the main power button every day?
Many thanks for any suggestions.

Bootup holding CMD+r, or the Option/alt key to boot from the Restore partitirion & use Disk Utility from there to Repair the Disk, then Repair Permissions.
If that doesn't help Reinstall the OS.

Have downloaded Mountain Lion on my 2010 Mac Mini. Now when starting up, after a while I get a message that says, "You must restart your computer." I do that but get the same message again and again. Any ideas? Thanks!

I am having issues trying to start up with Mountain Lion on my 2010 Mac Mini. Here's the scenario:
1) After starting up, I get the usual gray screen with Apple logo.
2) After a few minutes, a darker gray screen scrolls down and in the middle of this is a black dialogue box with reversed (white) text. This text, in multiple languages, reads: "You need to restart your computer." Then it goes on to instruct on how to shut it down and restart it.
3) I follow this instruction, but get the same dialogue box over and over agin.
Any ideas?
Thanks and best wishes.

If you can't boot in the usual way, try a safe boot. 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.
During startup, you’ll see a progress bar, and then the login screen, which appears even if you normally 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. Safe mode is slower than normal, and some things won’t work at all. Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the startup volume is on a software RAID, you can’t boot in safe mode. If you're able to boot, launch the Console 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. Click Utilities, then Console in the icon grid. Select the most recent panic log under System Diagnostic Reports. Post the entire contents — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

Mac won't start after downloading Mountain Lion

Downloaded Mountain Lion today ,when I restarted my IMac it won't reboot . Screen shows a circle with a line through it . Please help

Thanks Arthur,
Point 1 sounds scary and expensive!
thanks for the link I will try some of these when I get home and will report back.
HMHB

How do I download Mountain Lion on an old mac?

I have been relentlessly trying to update my mothers Mac. She has an older version of OS X, 10.5.8. I was attempting to download Mountain Lion, but I for the life of me could not get it to work. I have emailed Apple several times with no reply. How do I go about updating her mac to Yosemite?

Before embarking on a major OS upgrade, it would be wise, advisable and very prudent if you backup your current system to an external connected and Mac formatted Flash drive OR externally connected USB, Thunderbolt or FireWire 800, Mac formatted hard drive. Then, use either OS X Time Machine app to backup your entire system to the external drive OR purchase, install and use a data cloning app, like CarbonCopyCloner or SuperDuper, to make an exact and bootable copy (clone) of your entire Mac's internal hard drive. This step is really needed in case something goes wrong with the install of the new OS or you simply do not like the new OS, you have a very easy way/procedure to return your Mac to its former working state.
Then, determine if your Mac meets ALL minimum system install requirements.
Mac OS X v10.6 Snow Leopard system requirements
Purchased Installer disc here.
http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
To install Snow Leopard for the first time, you must have a Mac with:
An Intel processor
An internal or external DVD drive, or DVD or CD Sharing
At least 1 GB of RAM (additional RAM is recommended)
A built-in display or a display connected to an Apple-supplied video card supported by your computer
At least 5 GB of disk space available, or 7 GB of disk space if you install the developer tools
OS X Lion system requirements
Purchased emailed download code here.
http://store.apple.com/us/product/D6106Z/A/os-x-lion
To use Lion, make sure your computer has the following:
An Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor
Mac OS X v10.6.6 or later to install via the Mac App Store (v10.6.8 recommended)
7 GB of available disk space
2 GB of RAM
To install OS X 10.8 Mountain Lion, 10.9 Mavericks (currently unavailable) or OS X 10.10 Yosemite.you need one of these Macs:
OS X 10.8 Mountain Lion purchased emailed download code here.
http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion
iMac (Mid-2007 or later)
MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)
MacBook Pro (13-inch, Mid-2009 or later),
MacBook Pro (15-inch or 17-inch, Mid/Late 2007 or later)
MacBook Air (Late 2008 or later)
Mac mini (Early 2009 or later)
Mac Pro (Early 2008 or later)
Xserve (Early 2009)
Your Mac also needs:
OS X Mountain Lion, Lion, or Snow Leopard v10.6.8 already installed
2 GB or more of memory (I strongly advise, at least, 4 GBs of RAM or more)
8 GB or more of available space
Next,
If you run any older Mac software from the earlier PowerPC Macs, then none of this software will work with the newer OS X versions (10.7 and onward). OS X Snow Leopard had a magical and invisible PowerPC emulation application, called Rosetta, that worked seamlessly in the background that still allowed older PowerPC coded software to still operate in a Intel CPU Mac.
The use of Rosetta ended with OS X Snow Leopard as the Rosetta application was licensed to Apple, from a software company called Transitive, which got bought out, I believe, by IBM and Appe could no longer secure their rights to continue to use Rosetta in later versions of OS X.
So, you would need to check to see if you have software on your Mac that maybe older than, say, 2006 or older.
Also, check for app compatibilty here.
http://roaringapps.com/
If you have any commercial antivirus installed and/or hard drive cleaning apps installed on your Mac, like MacKeeper, CleanMyMac, TuneUpMyMac, MacCleanse, etc. now would be a good time to completely uninstall this apps by doing a Google search to learn how to properly uninstall these types of apps.
These types of apps will only cause your Mac issues later after the install of the new OS X version and you will have to completely uninstall these types of apps later.
Once you have determined all of this, you should be able to find the latest versions of OS X by clicking on the Mac App Store icon in the OS X Dock and then login to the Mac App Store using your Apple ID and password and if you purchased a download code, input that code.
You can then begin the download and installation process of installing the newer versions of OS X from the Mac App Store.

Cannot connect to app store after downloading mountain lion

cannot connect to app store after installing mountain lion it says there is no network connection when there clearly is i am on the internet now and i had this problem with the bootcamp server i read that in another forum and the answer to remove the auto proxy setting was correct but not for this situation because it is allready unchecked i checked it and tried again still no connection please help .... oh and apple you are beginging to be more like windows/microsoft with all the problems

That poor wordpress site has collapsed in exaustion from trying to keep up with the 3mil hits a day
here is a "copied" version with credits for those looking for a solution to an annoying problem Apple should patch. (Yes, I'm aware of the irony of that statement)
July 18, 2012 · by Arthur Lockman · in Apple, Tutorials
After doing a reinstall of Lion a few weeks ago, I found that my computer suddenly would reject every VeriSign certificate that it encountered. Using Chrome, that meant that I couldn’t even access Twitter.com, because it thought that the certificate was wrong. I couldn’t login to the Apple developer portal, I couldn’t authenticate a device with XCode, I couldn’t make a purchase at Apple.com, I couldn’t download updates from the Mac App Store, and I couldn’t login to Mint.com, among other sites. I essentially couldn’t do anything that used a VeriSign certificate for SSL.
What did I do? I called my trusty AppleCare advisor, hoping for an answer. I thought that maybe they could help me figure it out. After getting to senior support, I was told to reinstall Lion, which I did to no avail. My case was then forwarded to the Apple engineering team, with 3 to 5 days to wait until I had an answer. I looked around, through my console logs and through Keychain access, and finally came up with an answer, and a solution to my problems.
It turned out that my solution was pretty simple. I had to delete a few files and reset one to its default setting.
Delete the files /var/db/crls/crlcache.db and /var/db/crls/ocspcache.db. These can be found using Finder’s Go >; Go To Folder menu (Cmd + Shift + G). This resets the cache of accepted certificates in the system. It doesn’t remove them, it just forces the system to rebuild the caches upon restart.
Open Keychain Access (/Applications/Utilities/Keychain Access). Select Certificates in the Category picker on the left side. In the search bar, type in the word Class. Look through that list, and find any certificates that have a blue + symbol over their icon. These are the ones you need to modify.
Select one that has a blue +, and hit Command + I. Click the disclosure triangle beside the “Trust” list to show the list of permissions. Now, what we need to do is to set this certificate to use the system defaults. However, for some reason, when you select it, it doesn’t save. So what you need to do is this. Under “Trust”, where it says “Secure Sockets Layer (SSL)”, change the dropdown menu to say “No Value Specified”. Then, close the window. It will ask for your administrator permissions. Then, open the info pane for that certificate again. Under “Trust” again, now set the dropdown that says “When using this certificate:” to say “Use System Defaults”. You can then close out of the info pane, and enter your password again. Do this for any of the certificates that have a blue + on their icon. There should only be one or two at most.
Restart your system.
This solution seemed to work just fine for me. All of my certificate problems have been fixed. It must be something with the OSX installer that causes this certificate issue. I’ll file a bug report. Hopefully someone looks into it and fixes the flaw in the OS. And, I hope that this fixed the flaw for you.
Addendum – a note on security:
This procedure won’t affect the security of your Mac. I’ve had some questions come in about that, and if anything, it makes it more secure because then sites that require SSL certificates can actually use them, unlike before where they might default to non secure connections because the certificate was bad.

After downloading Mountain Lion neither of my Macs play DVD videos.

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