Kernal Panic i think

well im fairly new to mac and the mac forums look's like a good place for help anyways her is the story i had purchased a macbook from a friend and i restarted my macbook and it shows apple logo then it says "you need to restart your computer hold down power button" with a Grey backround screen and i tried almost every boot key. I have tried booting up install DVD but nothing happens at all the only way i get the DVD out is holding mouse button
it does not have a warranty so can anyone help it was running fine til today. Any help is appreciated.

thank in advance

ok nvm just lookin for some help
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Try powering on MacBook inserting Instal disk and holding the 'C' Key - you should then be able to do a clean instal which will get rid of any potential problem that currently exists on the HD. Look for Options in the install window to choose to Erase for a fresh instal.

Collin Bl said:

Try powering on MacBook inserting Instal disk and holding the 'C' Key - you should then be able to do a clean instal which will get rid of any potential problem that currently exists on the HD. Look for Options in the install window to choose to Erase for a fresh instal.

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thanks for the answer its greatly appreciated but the thing is my boot keys do not work none of them tried safe mode holding c nothing seems to work.