Start-up screen flashing, apple,stop,?

what does 'start-up screen flashing, apple,stop,?' in Leopard iMacOSX 10.5.7, mean ???
How do we fix it ???,, computer had been working fine ....'safe mode' says
"mach_kernel' file won't open.../kernelcache_6a129E2A ..
david

Follow the steps after Safe Boot, at > Mac OS X: Gray screen appears during startup

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PSE7 Organizer does not start properly, screen flashes, PC stops

Hello. I can't find this problem mentioned on the forum.
I've used PSE4 and 5 in the past without problems. Have just completed a clean install of PSE7 (no PS or PSE previously installed on this system, a ThinkPad T60 with 2MB). The Editor runs fine.
I ran the Organizer once, set some preferences, pointed it at a small number of images to import, then the whole screen started flashing and soon my system stopped in its tracks - no blue screen.
Now, when I try and start the Organizer, it spends maybe half a minute "Generating thumbnails" without success (all the thumbnails have egg timers on them). It uses 50% CPU. It still says "Generating thumbnails" after half a minute or so when the screen starts flashing and the system crashes again.
Any ideas?

Fixed. Thank you John.
I renamed the preferences file but that made no difference.
So I repaired the catalog (errors were found) and optimized it. When I started the Organizer, thumbnails were displayed (that's progress) but then the screen-flashing started again (whole screen, as usual, not just the Organizer window). Before I could close the Organizer, my system stopped with a blank, black screen, and no response to any input. I had to hold the power button to power down. On reboot, it blue-screened. On next reboot it started normally.
So I created a new catalog and the Organizer started fine. Then I set it off getting photos from a folder of folders of jpegs (with the odd txt and other file type). After a few seconds, the screen-flashing started again, and I quickly closed the Organizer.
When I restarted it, the catalog was empty, so I had it get just one folder of photos at a time. On the very last one, the problem started again. I found an AVI file that I'd overlooked, removed it, and the problem went away. The AVI was one I recorded on a digital compact.
The Help for Organizer says:
"The Organizer catalogs video AVI files properly, but audio AVI files are shown as broken video thumbnail icons. However, they will play correctly."
Hmmm...doesn't seem to be the case for me. Even if AVIs were unsupported or known to cause problems, I would never expect to see the symptoms I did.
Hopefully my experience will help others. Incidentally, I run XP Pro SP3, fully updated.

Start-up screen flashes purple

The grey/white boot screen flashes purple at start-up. While it is a bit disconcerting this development does not seem to adversely affect the OS.
Has anyone found a means to have the OS return to normal start-up functioning?
Thanks in advance.

Try Reset PRAM.
Some of the display settings are stored in PRAM.
Reset PRAM: http://support.apple.com/kb/PH14222
Best.

Computer won't start, grey screen with Apple logo only. Ideas?

Last night my wife's G5 froze. It is a G5 2.0 running OS X 10.4.11. I shut it down (had to use the power button) and tried to restart. No luck, just made it to the grey screen with Apple logo and spinning wheel. After a few seconds the Apple logo disappeared and a black box took its place, then the wheel stopped spinning. It was late, decided top wait until morning before trying again.
This morning I tried to start up again. This time got a warning(?) in upper left that a Firmtek item had already started. I'm sorry I didn't write this all down at the time, so I don't remember the entire message. Since there is a Firmtek card installed in one of the PCI slots I thought that might be the problem, and I pulled the card, as well as another Adaptec card that was also installed. Tried to start again, got to grey screen with Apple but this time no spinning wheel.
Opened media slot manually and inserted Diskwarrior. Tried to start with Diskwarrior but again only reached grey screen. Let run for ~5 minutes, until fans started to run and were begining to get noisy.
Next I reset the PRAM. No luck, still stuck on grey screen. Tried Diskwarrior again, this time got another message in upper left. Here is most of it -
System Failure : cpu=1; code=60000009 (Invalid pmap)
Lateset crash info for cpu1;
Exception state (sv=0x609bb280)
PC=0x000a4ad0; MSR=0x02003000 followed by more similar strings, then
backtrace terminated - unaligned frame address; 0xfc088891
So what's the diagnosis? I've had various issues with my G5s in the past, but have never had one refuse to boot with Diskwarrior before.
Thanks in advance for any help!

Whew, could be many things, from RAM, (or RAM slots/solder issue), to CPU #1 being bad, (CPU#1 is actually the second one.
Does it boot into any of these modes?
Target mode...
http://support.apple.com/kb/HT1661
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214
We might get clues with verbose mode...
http://support.apple.com/kb/HT1492

Imac does not start white screen with apple logo.......

Hi guys, my brand new Imac 21.5 got stuck on the white screen with apple logo and nonstop little wheel, but it never gets out of it....Disconnected everything else restarted but still nothing...stuck at the same screen. Please i need help, the machine is only 3 months old!!!

Hi, do you have AppleCare?
Call AppleHelp in any event 1-800-275-2273
You could try booting from your discs (Disc#1) that came with your Mac -
...L

Blank screen flashing apple logo

My iPhone 5 suddenly no repsonse but blank scree. Flashing apple logo when plug in power.

If still problem see the remainit actions of:
Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Start up screen flashes and turns off

How can I fix iPad 2. It flashes if I push side button and start button at the same time. otherwise screen is black, and will not start.

Hey lydia1951,
Thanks for using the Apple Support Communities. I understand that you are experiencing issues with your iPad 2 powering on. The following resource may provide a solution:
If your iPhone, iPad, or iPod touch doesn't respond or doesn't turn on - Apple Support
http://support.apple.com/en-us/HT201412
Thanks,
Matt M.

Start up screen will not stop.

When I turn my MacBook on I get the gray screen with the apple and the spinning dashes, but it will not go any further. I left it open today for hours and it stayed on that screen. What does this mean?
Before this happened I had been working on the computer and it just froze up. Nothing would work so I force quit with the power button.

What operating system are you running please?

IPod mini screen flashes apple on and off..help!

Yesterday, I tried to turn on my iPod mini and the low battery symbol came up, so I plugged it in. When I did, it wouldn't turn on, but instead, the apple keeps flashing on and off every 10 seconds and it won't quit until about 5 mintues has passed. There is also a clicking noise inside, like it is turning itself off and on and trying to restart. Since yesterday, every time I try to plug it in to recharge it, it does this same thing over and over again.
Someone please help . . the answer isn't on the FAQ either!!
Thanks alot! Leighla

OK. I've gotten my ipod working again. Here is what I did.
I reset my ipod (which didn't do anything)
http://docs.info.apple.com/article.html?artnum=61705
And then I put it into hard drive mode (which worked)
http://docs.info.apple.com/article.html?artnum=93651
From there my computer recognized it and I restored the factory settings thru ipod updater. My ipod software was current, so I didn't have the option of updating. It works now and I've reloaded all my music back on. I hope it stays in good health.
Good luck with your issue.
imac G4 Mac OS X (10.4)

Grey screen flashing question and apple logo

My power mac G4 wont boot passed a grey screen flashing apple logo and question mark. Have tried every option that the support can give you. still nothing. tried the apple hardware test and doesnt seem to be effecting it at all??? What should i do?

If you hold the Option/alt key at bootup, what shows as boot choives?
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Or does it not show at all?
Tough without the Install disc, but some things to try...
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214

Macbook freezes at Start Up screen/Will not boot

I have a 13" MacBook purchased almost two years ago. The computer recently froze completely. I tried to restarted the computer but it would just go to the white start up screen (w/ Apple logo) over and over again. I turned it off completely and let it sit for a hour or so while it was plugged in. Now when I turn on the computer it will not turn on - it makes the Apple chime and goes to the white start up screen with grey logo.
Is there anything trouble shooting I can do to try and resolve this problem?

What operating system are you running please?

My iphone keeps flashing the apple start up screen

i've tried to update my iphone, but when it went to reboot it just flashes the apple start up screen over and over again! i've tried charging it and holding down the buttons but nothing is working. any suggestions?

Place your iPhone into recovery mode as described here. You may have to try to enter recovery mode more than once to succeed.
http://support.apple.com/kb/HT1808

Ipad mini cycles from apple logo to start screen and wont stop

Ipad mini cycles from apple logo to start screen and wont stop. Will not shutdown. Cycles every 5-8 seconds. Thanks!

I'm having the same problem. Since it's the same problem, I thought I'd pigtail on this thread, rather than clutter up the forum with a duplicate. I can start a new thread if this is not appropriate.
I have tried a reset, using the sleep/wake and home buttons, with no success. I have also restored to factory settings, then restored to backup. It's still rebooting itself.
iPad Mini wifi (not Retina). iOS 7.1.1.
This problem started today. I updated to 7.1.1 soon after the update was released.

HT1349 i upgraded to yosemite last week, now my computer wont start. it stops at white screen with apple logo. what do i do?

i upgraded to yosemite last week, now my computer wont start. it stops at white screen with apple logo. what do i do?

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
Step 1
The first step in dealing with a startup failure is to secure the 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 the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
a. Start up from 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.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start 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.
d. 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
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up 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.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start 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 the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up 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, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup 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 restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the 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 restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) 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 startup 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 13
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.

HT201412 ok i did the new update and now my phone wont even start up! the apple logo comes up then the screen will flash and the phone will shut off. any ideas?

as listed in the title, my phone just flashes on me no start up just flashes from the apple logo to shutting off and back and forth i did the update this afternoon (9-26-2012) and it still wont start up!!!

Something in your backup may be corrupt. Try wiping it and setting it up as a new device, then sync your apps, data and media back to it from iTunes. DO NOT resotre from your backup. If the problem is contained in the backup, it will bring it right back again if you restore.

Start-up screen flashing, apple,stop,?

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