corrupted db files?

[Fletcher Mattox]

Occasionally the word count values in my db files get very large.
Many of them are near 2^32, perhaps suggesting integer overflow
of some type.

	cs.utexas.edu$ bogoutil -d spamlist.db | sort +1rn | head -5
	css 4278190080
	find 4278190080
	give 4278190080
	email 4211343360
	network 4211146752
	cs.utexas.edu$ bogoutil -d spamlist.db | grep .MSG_COUNT
	.MSG_COUNT 688717824
	cs.utexas.edu$ bogoutil -w spamlist.db .MSG_COUNT
	.MSG_COUNT 3369
	cs.utexas.edu$ 

There probably are 3369 messages in this db, so maybe this is just
an artifact of the way Berkeley DB works?  Should I be concerned?