My round-robin not behaving

[Christine.Tran at east.sun.com]

Experts,
[BIND 8.2p1, Solaris 2.6]

I have:
	foo		IN	A	1.2.3.4
	foo		IN	A	5.6.7.8

I expect to see
>foo
Name:    foo.blat.com
Addresses:  1.2.3.4, 5.6.7.8

>foo
Name:    foo.blat.com
Addresses:  5.6.7.8, 1.2.3.4

and back and forth, REGULARLY.  This is not the case.  I see 1-to-1, 2-to-2, 2-to-3, 1-to-3 round-robin and the behavior is completely unpredictable.  Is there a randomizing switch somewhere that I have overlooked?

QCT