Must restart computer when opening Mail

When I open the Mail aplication I receive this message:
" You need to restart your computer. Hold down the power button for several seconds or press the restart button".
I don't know if it is related, but the adress book seems to show no data.
Any idea of what's happening? Many thanks.

Hello Again oficinadosite!
As I Also Replied, in your Duplicate Topic,
What you are experiencing is a OS X Kernel Panic.
Exactly which model Mac G5 is it?
What size is the Hard Drive, and how much space is available?
How much RAM is installed, and is it original or added?
What peripherals do you have connected to the Mac?
Is when you open Mail, the only time this happens?
Are there any programs or applications, that are set to load at Startup?
What happened shortly before this issue originated.
Did you make any changes, like upgrading the system, update or install any applications or programs, new hardware or peripherals, etc?
Have there been any unusual occurences, like freezes, crashes, power outages, etc?
Are you able to startup from the system install disc, to run Repair Disk?
Have you run Repair Permissions?
Advise if you need instructions, to perform these procedures.
You may find use helpful tips in this document Resolving Kernel Panics, authored by Dr Smoke.
ali b

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Problem when opening "Mail"

Dear members of the Apple Community,
After transferring my files and my profile on my new Macbook pro, I keep encountering a problem when opening "Mail". Each time I try, the app asks me to choose a mail account to add, but I already added the ones I normally use. I can either create/add this new account or click the "cancel" button. I cannot use the program (the main functions are not available). But if I try to add a new account, Mail does not upload the new messages for my existing accounts and if I click "cancel", the application simply close itself. What could I do?
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It might be worth running Disk Utilities and then Repair Disk Permissions to see if that resolves the problem.
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Must restart computer in order to print. What's going on?

I have a Win7 machine. I've used the AirPrintInstaller and my attached, shared printer is now seen by my IPhone when the computer is turned on. Printer is a Samsung laser printer attached to the computer via USB.
If I print an email to the printer from the Iphone, sometimes it will print immediately. However, subsequent prints from other emails get stored somewhere and will only print out if the entire computer is restarted.
At other times, even the first email print request sent out to the printer is stored and it won't print out until the computer is restarted.
When I open the printer, the actual printer cue shows no documents in it...even though documents will print if the computer is restarted.
So I'm stumped. Why this disconnect? Can someone please help? Thanks.
Message was edited by: Birdman747

I have a Win7 machine. I've used the AirPrintInstaller and my attached, shared printer is now seen by my IPhone when the computer is turned on. Printer is a Samsung laser printer attached to the computer via USB.
If I print an email to the printer from the Iphone, sometimes it will print immediately. However, subsequent prints from other emails get stored somewhere and will only print out if the entire computer is restarted.
At other times, even the first email print request sent out to the printer is stored and it won't print out until the computer is restarted.
When I open the printer, the actual printer cue shows no documents in it...even though documents will print if the computer is restarted.
So I'm stumped. Why this disconnect? Can someone please help? Thanks.
Message was edited by: Birdman747

"Must Restart Computer?"

Last night I was on my iBook G4. Suddenly, a transparent grey box appeared and in 4 or 5 different languages (freezes up the whole system), it said that I must restart the computer by holding down the power button for a few seconds. I did that.
When I powered back up, a white screen appeared instructing me to either type "Shut-down" or something else that I can't remember at this time and then to hit RETURN.
Now, the computer won't even turn on! I tried removing the battery and when I try to start up again, I do hear the "turn on sound", but the desktop only displays for a few seconds before that grey box appears again telling me to restart.
So now after removing the battery a few things usually happen:
1. I can't start the computer at all
2. The computer turns on, but only for a few seconds before the bos appears
3. I hear the "turn on sound", but nothing appears on the screen.
Anyone out there have any idea what this is and how to fix it?
Any help is GREATLY APPRECIATED!

stones3131, Welcome to the discussion area!
FYI, this area is for the iBook G3 clamshell.
Since you have an iBook G4 you will probably want to post future questions in the iBook G4 discussion area.

Verify Certificate when opening Mail

Hi,
I hope someone can help. Every time I open up Mail,on my iMac, I get a "Verify Certificate" dialogue box. With the following message;
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The certificate for this server is invalid.You might be connecting to a server that is pretending to be"mail.me.com" which could put your confidential information at risk. Do you want to connect to the server anyway?
I click connect and the mail works fine. However, the message reappears every time on opening mail.
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1. I have opened the certificate and clicked on the "Always trust "mail.me.com" when connecting to "mail.me.com"" but this will be not ticked the next time I open Mail.
2. I have deleted then reopened the account.
3. I have deleted the ByHost file in User/library/preferences.
4. I have used the Keychain access and selected always trust for the certificate. It will not stay selected.
Is there any way I can get rid of this message. It does not occur when opening the account from my MBP.
Thanks

Greetings,
If you have the same account(s) setup on your Macbook Pro and it works fine there, I'd say your Mail preferences file is corrupt. So, if you make a copy of the com.apple.mail.plist file on your Macbook Pro and move it to Home/Library/Preferences on the problem Mac (which will overwrite the current file), then restart Mail, it should work fine again.

TS2621 Sometimes when opening mail, all existing messages disappear. Help please!

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Mac HD says 2.49.72GB and 151.88 used??
That's impossible. I think you mean to say that your HD capacity is 249.72 GB, and you've used 151.88 GB. You do have enough free space, so that means something else is going on to cause this problem.
Aside from setting up the Gmail account(s), did you install or update anything just prior to this problem starting? If so, what were those items?
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Also, there may be problems with your hard drive, so I would boot your Mac from the install disc, choose your language, then wait about 15 seconds for the menu bar at the top to appear and choose Utilities->Disk Utility and Repair Disk. If it comes back with any errors that can't be fixed, post them in your reply. But if not, then run Repair Permissions, and all you need to concern yourself with is the message at the end that 'Permission repair completed'; ignore anything else as long as you see that message.
Then reboot your system and restart Mail and setup your account(s) again (assuming it's not there because you deleted the IMAP mail folder and the Envelope Index file. In the future, don't throw things away unless you know the consequences of doing so; you'll end up being unfortunately surprised when you lose critical information.

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Look into the mail accounts and delete their profiles. You should not lose any data you entered into contacts or calendar. After you delete them re-enter the profiles again. Hopefully it should resume working again.

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On my book Pro with Mac OS X 0.7.2 i creted a new Bootcamp Partition and i installed WIN7 Ultimate. When installation was completed i installed Bootcamp driver. Now i'm able to login with OS x or with Win7 and both system seems to work properly.
When i shutdown Win7 or OSX a gray window is displayed with this message "YOU NEED TO RESTART COMPUTER. HOLD DOWN YHE POWER BUTTON UNTIL IT TURNS OFF, THEN PRESS THE POWER BUTTON AGAIN."; this message is displayed in 5 different langueges; under the message is displayed a black icon with the force shutdown / restart button of the mac book pro.
I follow the required procedure: if i choose to restart with OS X an alert essage is dispayed : "COMPUTER WAS RESTARTED DUE TO A PROBLEM"; dialog suggest to send notification to Apple; this message is displayed in my original language: Italian.
Some one can help me please?
Thx
carlo Casoli

That is hardware and driver issue and to resolve you are probably going to have to find what was installed and uninstall, and disconnect the device.
AppleHFS.sys can have trouble mounting drives.
To write to Windows, NTFS driver (Paragon-Software)
To stop using AppleHFS, again, replace with a Windows HFS driver
- if that is the cause
Apple does not support mounting RAID while in Windows.
Reinstall won't help. And you can't avoid forever.
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Welcome To  Discussions sylviadlex!
And Merry Christmas!
Mac OS X Versions 10.1, 10.2, 10.3, 10.4, and 10.5, are complete system upgrades that must be purchased.
Once an OS has been installed, the point upgrades, such as 10.1.x to 10.1.5 (Final) 10.2.x to 10.2.8 (Final), 10.3.x to 10.3.9 (Final), 10.4.x to 10.4.11 (Pending), and 10.5.x to 10.5.1 (Pending), can be downloaded for free.
Tiger is available for purchase at The Apple Store (U.S.).
If your Mac meets the Leopard System Requirements. Leopard 10.5.x, can also be purchased at The Apple Store (U.S.).
If you know what to look for, a Full Retail Version, of the Tiger Install DVD, can also be purchased, sometimes less expensively, at some online Apple retailers, Amazon, eBay, FastMac, HardCore Mac, AllMac, etc.
As you have discovered, be sure not to purchase grey, upgrade or machine specific CDs or DVDs.
The discs should look exactly like the images in the above links, and not say Upgrade, CPU Drop-in DVD, or "This software is part of a hardware bundle purchase - not to be sold seperately." on them.
Additional info in these links.
Using OS X Install CDs/DVDs On Multiple Macs
What's A Computer Specific Mac OS X Release
Software Update, Upgrade: What's The Difference?
Caveat Emptor!
If any are presently available, examine these items very carefully, and if in doubt, ask questions of the seller before purchase!
Tiger On eBay
If your Mac meets the Tiger System Requirements, once Tiger 10.4.x is installed, you can use the PPC 10.4.11 Combo Update, to upgrade to the current version.
If Leopard 10.5.x is installed, use the Mac OS X 10.5.1 Update.
Shop Carefully, Examine All Documentation, And I Wish You Success!
ali b

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Must restart computer when opening Mail

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