Green screen at startup on Macbook pro retina

On startup, the Apple logo appears, then the gray screen changes to teal (turquoise) for just a flash and back to gray, then continues to desktop. Is there anything to worry about? This has only happened for the the last week or so.

You're not the only person having similar problems after updating to 10.9.3... a lot of users have experienced pink, red, yellow, etc., screens. It doesn't seem to cause any problems, however, and is probably nothing to actually worry about. I've had it in the past on previous releases of OS X but it didn't affect my computer usage.
I know that it looks annoying, but I don't think that there's really anything that can be done right now. You'll just have to wait for 10.9.4 to come out or, if it really bothers you, you may want to try a re-install of 10.9.3 and see if that 'fixes' anything. If you're still under AppleCare, you could take the machine into the genius bar at your local Apple Store (make an appointment first!) or to an AASP.
Good luck,
Clinton

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The plastic hinge between my screen and the computer (macbook pro retina) is cracked and doesn't hold the screen anymore? Can Apple change it?

The hinge between my screen and my computer (macbook pro retina) has cracked and doesn't hold the screen anymore. Can I fix it without changing my screen. And if it's still on guarantee does Apple have to repair it?

Apple can fix any and all of their computers. Whether it would be charged to you would be the question. Do you have AppleCare?
Accidental damage is not covered by AppleCare.
How old is this computer?

My screen flickers in Safari MacBook Pro Retina 2012

My screen flickers in a totally random fashion and only in Safari when I am on the internet. It happens more or less on certain web pages and not very often, but it is very annoying when it does happen. My machine is a Macbook Pro Retina 15" late 2012 release. I have seen other posts on this issue dating back to 2012, however, there were not solutions submitted leaving me to believe that there is no solution or I may have missed it. People with the same problem say they have taken in their laptops to have them replaced by Apple only to find out their problem still exists, leading many to believe it's likely to be a software issue. Anyone have any ideas or answers to this issue?

Hey dhaynes3818,
Thanks for the question. I understand that you are experiencing issues with Safari on your MacBook Pro. To troubleshoot these issues, lets follow the steps in this article:
Unsupported third-party add-ons may cause Safari to unexpectedly quit or have performance issues - Apple Support
http://support.apple.com/en-us/HT203353
Thanks,
Matt M.

Green screen issues on my macbook pro 2008

My screen on my 2008 macbook pro 15 inch sometimes goes green and than come back to normal after about 15 minutes. anyone have any idea on my issue is
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See Article: http://support.apple.com/kb/TS2377 MacBook Pro: Distorted video or no video issues These computers were manufactured between approximately May 2007 and September 2008

Grey Screen of Death on MacBook Pro Retina late 2013

Hi everyone, I decided to open this thread in order to help to other people that can encounter the same problem. Here's what happened to me recently: I have a MacBook Pro, late 2013 model, and I've been using it now for 2 months. Everything worked perfect, and yesterday, when I turned off the computer, and tried to turn it on, a grey screen with the apple logo and the spinning circle appeared and it didn't boot. I thought it's some temporary problem and I turned it off and try to boot again. No help, it got stucked again on the grey screen with the apple logo. It was extremely frustrating because I was in the middle of the job, and I couldn't go on. I tried all kinds of things I've found on forums, but none of them helped. Here's what I've tried: reset SMC, reset NVRAM, start in the single user mode, start in the verbose mode, run the apple hardware test, start in the recovery mode. None of this made my mac book again as before. The recovery mode however booted, and I could check my HD and verify it, repair permissions, but it had nothing to do with my problem. In the recovery mode I had 2 options that I though could be useful in my situation. The first one allows to reinstall from time machine backup, and the other one reinstalls the OS. In my case it's Mavericks OS. My backup was 3 weeks old and I didn't want to lose some files, so I decided (after 7 hours and a sleepless night) to go to Apple Genius. I wanted to make sure that my mac hardware is ok, and maybe get some useful information about what made my mac behave that way. The Genius guy could't really answer what the cause was, and when he tried to run some diagnostics, only some of them worked, and some other diagnostics didn't boot again. However, he said my computer is fully functional and maybe some OS Mavericks file got corrupted and that's why it couldn't boot. He suggested me to reinstall the Mavericks OS. My biggest concer was what was going to happen with my files, and it turns out that (in case your hardware is OK) the best solution is to reinstall the OS. It keeps your files and preferences. Since I didn't want to wait at the Genius bar, I took the computer and reinstalled the OS at home. The computer booted again!!! :-)
My advice to everyone that may have the same problem: if resetting SMC and NVRAM doesn't help, reinstall from the latest time machine backup if you have one. If you don't have it yet, get one :-) it's a must. If you don't have a backup, or you have some old backup and you don't want to lose your files like it was in my case, just do a fresh OS install. That's the fastest solution, it saves your energy and time.

Hi everyone, I decided to open this thread in order to help to other people that can encounter the same problem. Here's what happened to me recently: I have a MacBook Pro, late 2013 model, and I've been using it now for 2 months. Everything worked perfect, and yesterday, when I turned off the computer, and tried to turn it on, a grey screen with the apple logo and the spinning circle appeared and it didn't boot. I thought it's some temporary problem and I turned it off and try to boot again. No help, it got stucked again on the grey screen with the apple logo. It was extremely frustrating because I was in the middle of the job, and I couldn't go on. I tried all kinds of things I've found on forums, but none of them helped. Here's what I've tried: reset SMC, reset NVRAM, start in the single user mode, start in the verbose mode, run the apple hardware test, start in the recovery mode. None of this made my mac book again as before. The recovery mode however booted, and I could check my HD and verify it, repair permissions, but it had nothing to do with my problem. In the recovery mode I had 2 options that I though could be useful in my situation. The first one allows to reinstall from time machine backup, and the other one reinstalls the OS. In my case it's Mavericks OS. My backup was 3 weeks old and I didn't want to lose some files, so I decided (after 7 hours and a sleepless night) to go to Apple Genius. I wanted to make sure that my mac hardware is ok, and maybe get some useful information about what made my mac behave that way. The Genius guy could't really answer what the cause was, and when he tried to run some diagnostics, only some of them worked, and some other diagnostics didn't boot again. However, he said my computer is fully functional and maybe some OS Mavericks file got corrupted and that's why it couldn't boot. He suggested me to reinstall the Mavericks OS. My biggest concer was what was going to happen with my files, and it turns out that (in case your hardware is OK) the best solution is to reinstall the OS. It keeps your files and preferences. Since I didn't want to wait at the Genius bar, I took the computer and reinstalled the OS at home. The computer booted again!!! :-)
My advice to everyone that may have the same problem: if resetting SMC and NVRAM doesn't help, reinstall from the latest time machine backup if you have one. If you don't have it yet, get one :-) it's a must. If you don't have a backup, or you have some old backup and you don't want to lose your files like it was in my case, just do a fresh OS install. That's the fastest solution, it saves your energy and time.

White screen on startup 2010 Macbook pro

The computer worked fine a couple of days ago, when the computer was given to me. I reformatted and reinstalled OS X through disk utility to remove all of the previous data. It worked fine up until I took it took school. When I took it out of my school bag, I thought that I had broken the LCD because of the plain white screen with nothing working; not even OS X Utilities would open. I have tried the suggestions on the apple page for "Gray screen appears during startup" but none of these do anything. I have tried everything that I can, I replaced the hard drive, tried to boot with recovery assistant thumb drive in, tried starting while holding Control R, tried holding Option key. The only things that these soloutions have gotten me is, the folder with a "?" and a cursor over the white.
I am running out of things to try here as, I do not have the CD's and I know nothing about Mac's. If anyone could help me get to the point where I could open Utilities I would be forever thankful.

Please make a Genius Appointment and take it in for service.

Gray screen on startup of MacBook Pro.

I opened disk utility and got a long list of errors saying invalid node structure and invalid record count. I called Apple support and the rep told me to try reinstalling OS X on my MacBook, but when I went to install it, Macintosh HD did not show up as an option and he said there is definitely a problem with my hard drive and I need to take it in to an Apple store for repair. Does anyone know of a way to fix this issue without taking it to an Apple store?

If you need to reformat the hard drive:
Drive Erase for Lion/Mountain Lion
1. 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. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select the volume you wish to erase from the left side list. Click on the Erase tab in the DU main window.
3. Set the format type to Mac OS Extended (Journaled.) Click on the Erase button and wait until the process has completed.
If you are successful:
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.

Fall 2013 Macbook Pro Retina screen freezing and crashing

Hello,
lately, I have been experiencing some screen freezes on my Macbook Pro Retina 15''... The screen just freezes, including the mouse pointer and then it doesn't respond to anything. I just have to restart the machine again. This happens sometimes and not every day, but still a few times a week. I just do normal things on my mac while I get this problem.
Also, just recently almost an hour ago, my screen just turned all white and it said "Your computer restarted because of a problem. Press any key to continue or a wait a couple minutes for it to reboot." This time, I was watching a movie when it happened.
I have also verified the disk in disk utility, but no errors.
What may be causing this issue? Hardware? Software? I also have applecare, but I'm eager to find out what's the problem before I hand it to the apple store.
Thank you very much!
This is the kernel panic log:
Sun Mar 30 04:45:42 2014
panic(cpu 0 caller 0xffffff8011adbe2e): Kernel trap at 0xffffff8011aa3319, type 13=general protection, registers:
CR0: 0x0000000080010033, CR2: 0x00007fff7bee0000, CR3: 0x0000000065fc904e, CR4: 0x00000000001606e0
RAX: 0x0000000000000001, RBX: 0xff000000ff000000, RCX: 0xffffff8035100450, RDX: 0x0000000000000821
RSP: 0xffffff81e5a63d20, RBP: 0xffffff81e5a63d50, RSI: 0x0000000026a74e9c, RDI: 0xffffff80184f9800
R8: 0x0000000000000000, R9: 0xffffff81e5a63ed0, R10: 0x00007fff5650aee0, R11: 0x00000000ffffffe5
R12: 0xffffff80184f9800, R13: 0xffffff80164be000, R14: 0x00000000000e0000, R15: 0xffffff80449d7f40
RFL: 0x0000000000010286, RIP: 0xffffff8011aa3319, CS: 0x0000000000000008, SS: 0x0000000000000000
Fault CR2: 0x00007fff7bee0000, Error code: 0x0000000000000000, Fault CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff81d3e5bc50 : 0xffffff8011a22fa9
0xffffff81d3e5bcd0 : 0xffffff8011adbe2e
0xffffff81d3e5bea0 : 0xffffff8011af3326
0xffffff81d3e5bec0 : 0xffffff8011aa3319
0xffffff81e5a63d50 : 0xffffff8011a7804e
0xffffff81e5a63f20 : 0xffffff8011adc26c
0xffffff81e5a63fb0 : 0xffffff8011af322b
BSD process name corresponding to current thread: launchdadd
Mac OS version:
13C64
Kernel version:
Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64
Kernel UUID: 9FEA8EDC-B629-3ED2-A1A3-6521A1885953
Kernel slide:
0x0000000011800000
Kernel text base: 0xffffff8011a00000
System model name: MacBookPro11,3 (Mac-2BD1B31983FE1663)
System uptime in nanoseconds: 24365483293442
last loaded kext at 17612576328462: com.apple.driver.AppleIntelMCEReporter
104 (addr 0xffffff7f9414b000, size 49152)
last unloaded kext at 17672593992681: com.apple.driver.AppleIntelMCEReporter
104 (addr 0xffffff7f9414b000, size 32768)
loaded kexts:
com.Cycling74.driver.Soundflower
1.5.3
com.apple.filesystems.smbfs
2.0.1
com.apple.driver.AppleHWSensor
1.9.5d0
com.apple.filesystems.autofs
3.0
com.apple.driver.X86PlatformShim
1.0.0
com.apple.driver.AGPM
100.14.15
com.apple.driver.ApplePlatformEnabler
2.0.9d1
com.apple.iokit.IOBluetoothSerialManager
4.2.3f10
com.apple.driver.AppleHDA
2.6.0f1
com.apple.GeForce
8.2.4
com.apple.driver.AppleUpstreamUserClient
3.5.13
com.apple.driver.AudioAUUC
1.60
com.apple.driver.AppleIntelHD5000Graphics
8.2.4
com.apple.driver.AppleCameraInterface
4.26.0
com.apple.iokit.IOUserEthernet
1.0.0d1
com.apple.Dont_Steal_Mac_OS_X
7.0.0
com.apple.driver.AppleHWAccess
1
com.apple.driver.AppleThunderboltIP
1.1.2
com.apple.driver.AppleLPC
1.7.0
com.apple.driver.AppleSMCLMU
2.0.4d1
com.apple.driver.AppleIntelFramebufferAzul
8.2.4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
4.2.3f10
com.apple.driver.AppleMuxControl
3.4.35
com.apple.driver.AppleMCCSControl
1.1.12
com.apple.driver.AppleUSBTCButtons
240.2
com.apple.driver.AppleUSBTCKeyboard
240.2
com.apple.driver.AppleUSBCardReader
3.4.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless
1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib
1.0.0d1
com.apple.BootCache
35
com.apple.driver.AppleUSBHub
666.4.0
com.apple.driver.XsanFilter
404
com.apple.iokit.IOAHCIBlockStorage
2.5.1
com.apple.driver.AppleAHCIPort
3.0.0
com.apple.driver.AirPort.Brcm4360
831.21.63
com.apple.driver.AppleUSBXHCI
670.4.0
com.apple.driver.AppleSmartBatteryManager
161.0.0
com.apple.driver.AppleRTC
2.0
com.apple.driver.AppleACPIButtons
2.0
com.apple.driver.AppleHPET
1.8
com.apple.driver.AppleSMBIOS
2.1
com.apple.driver.AppleACPIEC
2.0
com.apple.driver.AppleAPIC
1.7
com.apple.nke.applicationfirewall
153
com.apple.security.quarantine
3
com.apple.kext.triggers
1.0
com.apple.iokit.IOSerialFamily
10.0.7
com.apple.driver.DspFuncLib
2.6.0f1
com.apple.vecLib.kext
1.0.0
com.apple.iokit.IOAcceleratorFamily
98.14
com.apple.iokit.IOAudioFamily
1.9.5fc2
com.apple.kext.OSvKernDSPLib
1.14
com.apple.iokit.IOSurface
91
com.apple.iokit.IOBluetoothFamily
4.2.3f10
com.apple.driver.AppleHDAController
2.6.0f1
com.apple.iokit.IOHDAFamily
2.6.0f1
com.apple.nvidia.driver.NVDAGK100Hal
8.2.4
com.apple.nvidia.driver.NVDAResman
8.2.4
com.apple.AppleGraphicsDeviceControl
3.4.35
com.apple.iokit.IOAcceleratorFamily2
98.14
com.apple.iokit.IOBluetoothHostControllerUSBTransport
4.2.3f10
com.apple.driver.X86PlatformPlugin
1.0.0
com.apple.driver.AppleSMC
3.1.8
com.apple.driver.IOPlatformPluginFamily
5.7.0d10
com.apple.driver.AppleGraphicsControl
3.4.35
com.apple.driver.AppleBacklightExpert
1.0.4
com.apple.iokit.IONDRVSupport
2.4.1
com.apple.driver.AppleSMBusController
1.0.11d1
com.apple.iokit.IOGraphicsFamily
2.4.1
com.apple.driver.AppleUSBMultitouch
240.9
com.apple.iokit.IOSCSIBlockCommandsDevice
3.6.6
com.apple.iokit.IOUSBMassStorageClass
3.6.0
com.apple.iokit.IOSCSIArchitectureModelFamily
3.6.6
com.apple.driver.AppleUSBMergeNub
650.4.0
com.apple.iokit.IOUSBHIDDriver
660.4.0
com.apple.driver.AppleUSBComposite
656.4.1
com.apple.driver.AppleThunderboltDPInAdapter
3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily
3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter
1.4.5
com.apple.iokit.IOUSBUserClient
660.4.2
com.apple.iokit.IOAHCIFamily
2.6.5
com.apple.driver.AppleThunderboltNHI
2.0.1
com.apple.iokit.IOThunderboltFamily
3.2.7
com.apple.iokit.IO80211Family
630.35
com.apple.driver.mDNSOffloadUserClient
1.0.1b5
com.apple.iokit.IONetworkingFamily
3.2
com.apple.iokit.IOUSBFamily
675.4.0
com.apple.driver.AppleEFINVRAM
2.0
com.apple.driver.AppleEFIRuntime
2.0
com.apple.iokit.IOHIDFamily
2.0.0
com.apple.iokit.IOSMBusFamily
1.1
com.apple.security.sandbox
278.11
com.apple.kext.AppleMatch
1.0.0d1
com.apple.security.TMSafetyNet
7
com.apple.driver.AppleKeyStore
2
com.apple.driver.DiskImages
371.1
com.apple.iokit.IOStorageFamily
1.9
com.apple.iokit.IOReportFamily
23
com.apple.driver.AppleFDEKeyStore
28.30
com.apple.driver.AppleACPIPlatform
2.0
com.apple.iokit.IOPCIFamily
2.9
com.apple.iokit.IOACPIFamily
1.4
com.apple.kec.pthread
1
com.apple.kec.corecrypto
1.0
System Profile:
Model: MacBookPro11,3, BootROM MBP112.0138.B02, 4 processors, Intel Core i7, 2.6 GHz, 16 GB, SMC 2.19f3
Graphics: Intel Iris Pro, Intel Iris Pro, Built-In, 1024 MB
Graphics: NVIDIA GeForce GT 750M, NVIDIA GeForce GT 750M, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x134), Broadcom BCM43xx 1.0 (6.30.223.154.63)
Bluetooth: Version 4.2.3f10 13477, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM0512F, 500,28 GB
USB Device: Internal Memory Card Reader
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, Apple Inc., 17.1

Looks like a RAM issue.
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x02FE, 0x000000000000000000000000000000000000

Macbook Pro Retina 15" flashing image/icon of world on screen at startup

My Macbook Pro (retina 15"), flashed an image/icon of the world when started up, and it had to be restarted before starting up properly. What's the reason for this? Is this an issue?

Search on globe at startup.
When I did up came some answers from way back in 2006.
It said to go to preferences startup & select the start up. I tried that & then restarted & while it seemed to take awhile then the rest has been faster.
It was saying something about losing where to find the start up so it was hunting until it found it. Something like that.
I'm on a 2012 13" MacBookPro running Mavericks.
Before this I had noticed it flashing back & forth between a gray screen & Mavericks screen on boot up (I was back & forth while booting & came back to see that. knew it wasn't good so shut down. Waited a few & then started up. It worked.)
It was funny since I had been wanting to go to Apple store & had talked about going w sister in law. That morning they said they were going in because hers wasn't working at all. So then I booted up & had that happen.
So I called & made a Genius bar appt. They checked & didn't find anything, but I had been getting the globe on bootup which kind of concerned me. Also its been rather slow booting & shutting down.

Green tint to Macbook Pro Retina screen.

Hello,
I have a Macbook Pro Retina less than 2 months old, earlier today the screen started to get a green tint on everything. I already attempted adjusting the color profile, which didn't affect the greenness of the screen.
Thoughts?
-Peter.

Ok, the EXACT same thing happened to me, although I sneezed all over the screen (gross) and then wiped it off with a windex covered paper towel. Then followed up with a damp microfiber towel to remove smudges. There was no way that water could have gotten in nor the windex.
So I raise you this question; did you use a microfiber cloth, and are you in a dry-cold or a dry-hot otherwise low humidity climate.
The reason I ask, theoretically if you did use a microfiber, had the computer on, and rubbed back and forth across the screen several times, you may have created static electricity, which may have interfered with the screen.
I found that after doing several power cycles (command+control+p+r+power) the green tint completely disappeared. I also noticed that the cat hair that flies around my house is not sticking to the screen anymore....
Food for thought
FYI purchased NOV/2014

Green flashing Facetime screen on Macbook Pro Retina.

Long story: Purchased my Macbook Pro Retina in July 2012. No problems until 8 months later. At that time the computer would freeze and I would get the beach ball and have to re-start. I took it in for repairs, they replaced the logic board and reinstalled the OS. After that, whenever doing FT with my fiance in GA to his Macbook Pro, we initially get about 20-30 minutes of clear FT, then his image freezes, then the background around him flashes green, and the the FT screen goes completely green. My image down in the corner is fine, only his is affected. He can see me perfectly from his end and we both can hear each other. When I call him back, everything is fine again for about 2-20 minutes (it varies) before the problem happens again. I am I am now on my second replacement Macbook Pro Retina, but still same problem with FT. Apple is working on it over the phone. Today we tried FT together (me and the apple person) but she covered her camera--so no moving images on her end. Apple wants to see if the problem happens while doing FT with someone else. I am working on that now. What will this prove? I am so frustrated with all the time and energy this is taking on my part.
Please, please, O please...any input would be appreciated.

Unable to make or receive FaceTime calls after April 16, 2014

When I turn on or restart my Macbook Pro Retina 15", my entire screen flashes completely bright yellow for a few seconds and then it goes to the normal Welcome screen. How do I fix this??

Hi Everyone,
This problem just started today. When I turn on or restart my Macbook Pro Retina 15" (Mid 2012 version), my screen is light gray like normal, and then after a few seconds my entire screen flashes completely bright yellow for a few seconds, and then it goes to the normal Welcome screen (where I choose to login as myself or a guest user). This suddenly started today and has not stopped since. This keeps happening every single time I turn on or restart my computer.
Yesterday I installed all the Mavericks and other updates that were available in the App Store, so I'm wondering if this is related to that since this never happened prior to my doing those updates yesterday. When I first installed the new OS X Mavericks (10.9.3) update, it went through the whole installation process (took about 10 minutes), and then during the installation I got an error message saying that it couldn't verify my iTunes application that was on my laptop, and then my laptop finished installing the updates. Then once my laptop restarted, the App Store "Updates" section said that I had to do the whole OS X Mavericks (10.9.3) and iTunes (Version 11.2) updates all over again. So my laptop did the whole installation again (took about 10 minutes, but this time I didn't get that "iTunes error message" during the installation process).
Now, when I go to the App Store "Updates" section, it says the following under "Updates Installed in the Last 30 days":
-Digital Camera RAW Compatibility Update (Version 5.05) installed May 15, 2014
-OS X Update (Version 10.9.3) installed May 15, 2014
-iTunes (Version 11.2) installed May 15, 2014
-OS X Update (Version 10.9.3) installed May 15, 2014
-iTunes (Version 11.2) installed May 15, 2014
-Security Update 2014-002 (Version 1.0) installed April 22, 2014
I'm wondering if this flashing bright yellow screen upon bootup is related to the fact that my laptop installed the OS X Update and the iTunes Update two times each? Or is this new problem totally unrelated? It's just that this problem started a day after these 2 updates were installed twice.
My Macbook Pro Retina 15" (Mid 2012 version) is otherwise working fine at least as of now. The only issue so far is this flashing bright yellow screen every time I turn on or restart my computer.
If anyone could please help me fix this so that my bootup screen doesn't flash completely bright yellow anymore, I would be forever grateful!
Thank you so much for reading this and for any help you can provide.
hope everyone is well,
Elaine

Hey everyone in Apple world!
I figured out how to fix the flashing yellow screen problem that I've been having on my MBP! Yessssss!!!
I found this super handy website with the golden answer: http://support.apple.com/kb/HT1379
I followed the instructions on this page and here's what I did:
Resetting NVRAM / PRAM
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
I went through the 6 steps above twice, just to make sure I got rid of whatever stuff was holding up my bootup process. Since I did that, my MBP boots up just like normal. No flashing yellow screen anymore!!
(Note that I arrived at this solution when I first saw this page: http://support.apple.com/kb/TS2570?viewlocale=en_US)
Let me know if this works for you!
Elaine

MacBook Pro Retina hangs on startup when connected to Thunderbolt Display

I have a MacBook Pro Retina and it's basically almost always connected to my Thunderbolt Display. Each time I start it up, I open the MacBook just slightly and press the power button - and almost instantly the MacBook goes ontop the startup Login screen and at this point is where I close the MacBook and login through the Thunderbolt Display.
Since last night for the very first time - My MacBook Pro hangs on a white screen and takes a long time before going to the Login screen. I've tried to swith the Thunderbolt Display off from the mains - I've also tried to boot up my MacBook on it's own without it being connected to the Thunderbold Display and all is fine (it almost immediatelly shows the Apple logo and then staright onto the Login screen then BUT as explained, as soon as the MacBook is connected to the Thunderbolt Display and I power it up - it hangs on a white screen for about 30 - 60 seconds before it goes to the login screen!
I have no idea how from one day to the next this could happen? Perhaps it's some Apple updates I've made recently which I cant really recall because I usually just update software when required to do so.
Hoping anyone can help.

Hello FunkTunes,
I recommend this section of the article Apple computers: Troubleshooting issues with video on internal or external displays found here http://support.apple.com/kb/ht1573.
Check connections
When using an external display be sure to check the following:
If you're using an Apple notebook, confirm the AC power cable or adapter is securely connected to the computer and the cable providing power to the display is also secure. It is always good to have your notebook connected to AC power when an external display is in use.
Confirm display adapters are fully seated in their respective connections and that they are supported models and for the computer and display. Refer to these articles to assist you with adapter compatibility and further configuration information:
Monitor and Display Adapter Table
About Mini DisplayPort to HDMI adapters
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
Thunderbolt ports and displays: Frequently asked questions (FAQ)
Remove all display cable extenders, KVM switches, or other like devices and retest to determine if the issue is resolved.
Try unplugging the video adapter or cable and then plug it back in.
If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.Reset the resolutionStart by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
All the best,
Sterling

I use a macbook pro retina. before i upgraded to maverick my windows stayed the way i put them. now after upgrade i have to resize every time i change the window. i use a 32in. monitor and use it full screen.

I use a macbook pro retina. I use a 32 in. monitor and use it full screen. I size the screen manually. Since i upgraded to maverick, I have to resize the screen each time I change windows.Before the upgrade the screen stayed where I put it.

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, or by a peripheral device.
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.

MacBook Pro Retina crash on startup?

Hi I have a MacBook Pro Retina Model A1398 which is crashing on startup.
I suspect it is trying to open various applications on startup and it can't handle it.
Is there a way to close the applications running in the background so it can just concentrate on starting?
When I power on the computer I see a progress bar below the apple logo...
The progress bar then disappears and I see a spinning wheel...
Then the computer shuts down.
Any thoughts?
The computer has full power and is plugged into the wall during startup. Any help is much appreciated!

Hello there, geoffbellnz.
The following Knowledge Base article provides a great checklist of steps for troubleshooting past that gray screen you're describing:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

Green screen at startup on Macbook pro retina

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