Ibook will not boot HELP!!!!

Hi,
First the ibook booted then would come up with the kernel error: square box with "you need to restart your computer. Hold down the power button for several seconds or press the restart button......
I then booted to single user mode and ran fsck -y which eventually came up with the all clear "The volume Macintosh HD appears to be OK"
I then restarted the system which booted to the blue screen with some quirky graphics towards the top. It will now not boot into single user mode, just black screen or multi-coloured stripy screen. When booting from the CD drive the sceen is just blue or black.
Has anyone any ideas what this could be

You are having kernel panics as shown in this Apple doc.#106227.
Do everything, in order, in Dr.Smokes Resolving Kernel Panics and don't leave out any steps.
Quote from Dr.Smoke "My FAQ is a roadmap: start at the beginning and work through to the end, following the instruction in the order specified, including the "If all else fails..." section if a cause or resolution is not found in an earlier troubleshooting step therein"
Here's more at a brody's KP site.
To get things going, try things in Apple doc.#106464.
Cheers!
DALE

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    Hi,
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    This looks more serious than I thought. I'm now thinking that it could be the hard drive or worse. I have tried to use the apple support phone # and it does not seem to work, 1800 275 2273.
    I'm having some real bad luck here. Any ideas?

    I ran the apple hard ware test disc. The quick test found no errors. The extended test freezes up completely. Now I'm really stumed. The logic board came up with know errors.
    When the system froze on the extended test. I falsed a re-boot. However the screen went black so I could not run the test again. It seems like a time thing... the ibook can only run for a short period before it freezes. Then it has to shut down for a while before it can run again

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