Won't boot with imac rest disc

I am trying to do a fresh install as i have just donated by imac to my mums school, i load the disc, follow the instructions when asked to restart.
after clicking the button imac switches off then won't restart.
I go past the initial light grey screen onto a darker gray with a message in several languages saying
"pleast restart your computer etc etc......" in a white box.
I have to switch off and reboot holding the mouse down to release the cd,
machine boots normally and there are and have never been any issues with it.
all current software is up to date, and i already tried a software restore which worked perfectly.
Any ideas how to fix it??

Hello and Welcome to Apple Discussions.
You are experiencing a Kernel Panic. If you work through each step of Dr Smoke's Kernel Panic Guide you will cure the issue.
mrtotes

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<table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText"><b>haroldkarl wrote on Sun, 22 January 2006 12:03</b></td></tr><tr><td class="quote">
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</td></tr></table>
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Message was edited by: Majordadusma

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Message was edited by: strathglass

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