Why does my mac screen suddenly get big?

Why does my screen suddenly zoom in? I can't figure out what triggers it and how to get back to normal display size

Thanks Yellowbox. I wasn't using a track pad, but the solution was the same for my mouse. Somewhere along the road I missed the fact that a double click on the mouse zooms and unzooms.

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Why does my Mac screen suddenly go dark? Sometimes it stays dark for an indefinite period after waking up from sleep.

Why does my Mac screen suddenly go dark? Sometimes it stays dark for an indefinite period after waking up from sleep. I have to open and shut the monitor screen to get it to light up again.

Might try posting in the MacBook Pro laptop forum. This is the Mac Pro desktop forum.
Also see:
OS X: When your Mac doesn't sleep or wake

Why does my Mac Book Pro get so hot?

My Mac Book Pro gets hot whenever i use it for awhile and i am wondering what could be causing the "over heating"
I just bought my Mac about a month ago, it is the 13 inch with the intel core i7 processor.

Hot is a relative term. Go on the Internet and download iStat pro, a widget that monitors the internal temperatures and fan speeds of your MBP. When you get accurate numerical data then you will be able to determine if there actually is a problem.
Yes the MBPs do get warm which is good because that is dissipating the internal heat being generated by the internal components. The heat to a large degree is a function of the applications you are using, such as video games will require more CPU resources than emails, thus generating additional heat.
Bear in mind that the MBP has internal heat sensors that will shut the unit down if it starts to over heat thus preventing the MBP committing Hari Kari.
Ciao.

Why does my .mac account automatically "get mail"?

I am migrating my email from Entourage to Mail. I have a .mac account, an account from my ISP, an account from my hosting account, and several emails for a domain of which I am the webmaster and admin.
Problem is, for some strange reason I can force all my other accounts to only get mail when I manually check it. But my .mac account is delivered into my inbox for my .mac account whenever I click on that box in my Inbox list. I can see a little dial icon that tells me that Mail is checking it then my message appears in the list.
I am trying to accomplish many things as I set up my boxes and this is the first step in learning about Mail. Its more of a control issue but it is important to me.
G4 Mirror Doors Mac OS X (10.4.8)

OK. It seems a few things need clarification here.
First of all, both POP and IMAP accounts use SMTP for sending, so there should be no difference in this regard. Also, mail accounts that allow both POP and IMAP access may very well use the same incoming mail server for both, so no surprise there either, except POP and IMAP access use different port numbers (which, in the case of Mail, you can see in Preferences > Accounts > Advanced).
I find it hard to believe that you cannot set up your .Mac account as IMAP in Entourage. In Mail, you can only choose the account type when setting up the account, and can see (but not change) it afterwards in Preferences > Accounts > Account Information > Account Type. If you see “.Mac” there, it means IMAP, the main difference between .Mac and IMAP being that Mail does more things automatically for you if it knows that it’s a .Mac account.
Doesn't look like it is possible.
Well, it’s possible if you set up your .Mac account as POP, if that’s what you want:
What is POP mail?
What is IMAP mail?
.Mac Mail Help: POP or IMAP?
Changing .Mac Mail from IMAP to POP

Why does my iPad screen suddenly go black?

While using my iPad (original, wifi only) the screen will suddenly go black and my only recourse is to push the home button and start back there. If I am in the midst of writing an email it is lost.
Is there a cure for this malady?
This occurs mostly in either email or the browser bcause these are the apps that I use 95% of the time.

Might try posting in the MacBook Pro laptop forum. This is the Mac Pro desktop forum.
Also see:
OS X: When your Mac doesn't sleep or wake

Why does my mac screen randomly turn black

Randomly when I use my imac my screen just turns black! it scares me and its reallllyyy ANOYING!!!!!!!!!!! I JUST UPDATED TO MOUNTAIN LION

What model is your iMac > How to identify iMac models
When was the last time you seriously vacuumed out the air intakes (the bottom grill work and small vent under the stand) to ensure that it is cooling properly?
You also might want the > iStat Pro, a Dashboard Widget by iSlayer, so that you can monitor the internal temps.

Why does my mac restart suddenly?

It's happened a few times when i was listening to itunes. I've changed the settings so it shouldn't be shutting down for an hour. And yet it's RESTARTING. ??

You mean a 'crash'?
In System prefs>Internet and WIreless>Network>Advanced>Proxies - turn off the 'auto proxy discovery' option.
See if that helps.
MJ

Why does my mac book pro not show in 1080p on my flat screen

why does my mac book pro not show in 1080p on my flat screen. My mac bookpro always showed in 1080p on a Sanyo Plasma screen. Now when I connect mac book pro I get a blank screen. It will display in 720 but not 1080p. Also will show in 1080i but pictures flicker.

davenug,
given how much we currently know about your MacBook Pro, why do you think that we would know the reason? Please help us to help you by providing relevant information about your MacBook Pro — which model is it? Which version of OS X is installed on it? Is its battery fully charged? Is its AC charger working properly? &c.

Why does my Mac stay on the white screen when I turn it on?

Why does my Mac stay on white screen when I turn it on?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 4
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 5
Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
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 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.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 6.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 6
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 7
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 8
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 9
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a boot failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 10
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Why does my mac mini getting hot

why does my mac mini get hot and run fan speeds up high. I've added ram and do not understand the temperature flucuations.

How hot is hot? What programs are you running when it gets hot?

HT6099 why does the mac pro (late 2013) only support up to 60Hz at 1080p? TV screens are pretty much all 120Hz. So much for future proof.

why does the mac pro (late 2013) only support up to 60Hz at 1080p? TV screens are pretty much all >120Hz. So much for future proof.

http://en.wikipedia.org/wiki/4K_resolution
http://en.wikipedia.org/wiki/4K_UHD
http://www.techradar.com/news/home-cinema/high-definition/4k-tv-resolution-what- you-need-to-know-1048954
Need More Pixels? Samsung’s 2014 UHD TVs Ship This Month
Wall Street Journal · 2 hours ago
Samsung’s 2014 lineup of Ultra High-Definition (aka 4K) TVs are on the way, and thanks to UHD content deals struck with Fox and Paramount—not to mention the…
Focusing on TVs and 1080p and 60Hz isn't the question, or the 'future'

Why does my Imac screen slide and I lose my screen? It goes back to my desktop. Then sometimes my screen goes to full screen and I don't know how to get out of it.

Why does my Imac screen slide and I lose my screen ~ It goes back to my desktop.
Then sometimes my screen goes to full screen without me doing any commands, and I don't know how to get out of it without going to force quit and starting all over.

Hi,
When it goes full screen try moving the mouse up to top right of scren & see if there a double diagonal Arrow to click on.
On the other see if it's the silly implentation of Spaces/Mission Control/Expose in ML...
https://discussions.apple.com/thread/4298411?start=0&tstart=0

Why does my mac start to a blue screen

Why does my mac go straight to a blue screen on start up?

Start into Safe Mode. http://support.apple.com/kb/HT1564
http://support.apple.com/kb/PH4373

Why does my mac sometimes start with a black and white fizzy screen at times? Should i be concerned?

Why does my mac sometimes start with a black and white fizzy screen at times? Should i be concerned?

Nope, not ever. Take it in for service.

Why does my mac pro gets extremly hot about 20 min or so that im on and freezes about a 1 hour that im on then i have to power off etc can u help me pls

why does my mac pro gets extrwhy does my mac pro gets extremly hot about 20 min or so that im on and freezes about a 1 hour that im on then i have to power off etc can u help me pls

You can find out what processes are loading your system by running Application Monitor (in Launchpad > Utilities if you're running Lion or Launchpad > Other under Mountain Lion). Select "All Processes". Sort the display by CPU% (click on the label of that column). What processes show over 10% CPU?
Also, when you click on the CPU button on the lower bar, what shows as your % idle? (Mine is showing about 98% just reading and posting here.)
If no process is causing the heat, you could have a hardware problem.

Why does my mac screen suddenly get big?

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