kernel bug

[amc]

I have been getting a strange kernel bug on my laptop from time to time. It doesn't really matter what kernel I use. I upgraded to gentoo-sources- 2.6.23-r8 and the bug says unable to handle kernel paging request at virtual address 80370665 and gave me a lot of call trace info and stack info. this problem only happens when I boot my laptop. not while it is running. anyone else have this problem ? and if so what should I do about it. rebooting the computer usually fixes the problem for the time being. 
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