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alexf
Mar 15, 2006, 01:33 PM
Hi Everyone,

I am experiencing a strange problem with my 12" iBook (purchased July 2005):

The computer starts up until after the "Mac OS X" screen (with the progress bar), but then the screen goes blank (or rather, blue) and nothing happens. I have tried restarting a number of times, to no avail.

Please help if you can - I am quite worried at this point. :confused:



yellow
Mar 15, 2006, 01:39 PM
Can we assume that you use AutoLogin?

frankblundt
Mar 15, 2006, 01:47 PM
Does it boot successfully from the System CD/DVD?
Can you run Disk Utility from there and Repair the iBook drive?

and of course, just for fun:
Maybe give zapping the PRAM (http://docs.info.apple.com/article.html?artnum=2238) a try. :)

yellow
Mar 15, 2006, 01:50 PM
Does it boot successfully from the System CD/DVD?
Can you run Disk Utility from there and Repair the iBook drive?

IMO, not needed.

This is most likely a problem with the loginwindow.plist, but I'd like to know if it's autologin (and therefore the user's .plist, or if the user logs in and therefore the system .plist).

alexf
Mar 15, 2006, 01:57 PM
IMO, not needed.

This is most likely a problem with the loginwindow.plist, but I'd like to know if it's autologin (and therefore the user's .plist, or if the user logs in and therefore the system .plist).

Thanks for the responses.

Yes, it is set so that I need to enter my password upon start-up.

yellow
Mar 15, 2006, 02:04 PM
My suggestion would be:

Boot in Single User Mode (hold down Cmd-S at boot)
At the prompt, type:

mount -uw /

Hit Return
At the prompt, type:

mv /Library/Preferences/com.apple.loginwindow.plist /var/root/.

Hit Return
At the prompt, type:

reboot

Hit Return
Your Mac should reboot and you should get back to the login window. You've lost nothing, as you only moved (mv) the preference file, should you need to go back to it for any reason.

alexf
Mar 15, 2006, 02:19 PM
My suggestion would be:

Boot in Single User Mode (hold down Cmd-S at boot)
At the prompt, type:

mount -uw /

Hit Return
At the prompt, type:

mv /Library/Preferences/com.apple.loginwindow.plist /var/root/.

Hit Return
At the prompt, type:

reboot

Hit Return
Your Mac should reboot and you should get back to the login window. You've lost nothing, as you only moved (mv) the preference file, should you need to go back to it for any reason.

Thanks, yellow.

I will give this a try now and report back.

alexf
Mar 15, 2006, 10:52 PM
Yes, this fixed the problem!

Thanks again for your expertise and help! :)

yellow
Mar 16, 2006, 11:21 AM
Glad to hear it!