Where did Gravel's votes go?

AP has corrected its vote totals. Here is where they are now:

2917 of 6913 Precincts Reporting - 42%

	Name	Party	Votes	Vote %
	Clinton, Hillary	Dem	470,687	52%
	Obama, Barack	Dem	271,662	30%
	Edwards, John	Dem	142,642	16%
	Biden, Joe	Dem	8,665	1%
	Richardson, Bill	Dem	8,469	1%
	Kucinich, Dennis	Dem	5,636	1%
	Dodd, Chris	Dem	3,050	0%
	Gravel, Mike	Dem	2,938	0%

But the question remains: Where did Gravel's votes go? He had 21,124 40 minutes ago! Is there more vote fraud going on again?

Update: Looking at these numbers, it is more than just Gravel's numbers. Where did Biden's votes go? Where did Kucinich's votes go? This is amazing. A total turn around in vote totals from one figure to another figure.