Is there some explanation for the voter turnout in California (as well as the crazy drop in turnout for Alaska (see http://shannynmoore.wordpress.com/2008/11/06/stolen-election-in-alaska/)?

I went to SOS for California and they say that 10,348,698 votes for Presiddent have been counted with 522,076 still to be counted for a total of 10,870,774.

CNN has the total presidential vote for the 2004 election at 12,400,499. 

That would be a drop of 12% from 2004 to 2008. Is that possible? Does anybody have any better information on this