This is the kernel panic warning. As the relevant KnowledgeBase article states: 
'A kernel panic is a type of error that occurs when the core (kernel) of an 
operating system receives an instruction in an unexpected format, or that it 
fails to handle properly. A kernel panic may also follow when the operating 
system is not able to recover from a different type of error. A kernel panic 
can be caused by damaged or incompatible software or, more rarely, damaged or 
incompatible hardware'.

This started happening on my iBook recently ... I reinstalled the system a few 
times and all seemed well. Alas ... the problem appears to have been worse than 
I first thought. My iBook died last Tuesday night ... a victim of the iBook 
logic board problem. It is with Digilife now undergoing repair under either 
Apple's special iBook logic board repair program (the iBook falls within the 
affected serial numbers) or, failing that, my AppleCare extended warranty.

I <choke> feel so , <sob> lost without my iBook. Seriously! ;-)

R.K.

-----Original Message-----
From: Adam Hewitt [mailto:[EMAIL PROTECTED]
Sent: Monday, 9 February 2004 2:18 PM
To: WAMUG Mailing List
Subject: random reboots


Hi All,

I have been using OSX for about 7 months now and I have never had any 
problems with it until recently when I begun getting a blackish box in 
the middle of the screen saying "The system needs to reboot, please 
hold the power button in for 5 seconds or press the reset button" and 
it has this written in 5 languages. Does anyone know what this is in 
regards to, whether it is a crash or just a required reboot etc, and 
how I can stop it from occurring?

Cheers,

Adam.

<SNIP>