Does NETWORKDAYS work with arrays?

The third column uses NETWOKDAYS(Q3,P3). The fourth column uses the ranges
(either as named ranges or Q3:Q6, P3:P6) and the array command
(Ctrl+Shift+Enter). I cannot get any permutation of the fourth column to
work and I suspect NETWORKDAYS does not work with arrays. Please, someone
tell me I'm wrong!

5/10/2005 5/12/2005 3 #VALUE!
4/28/2005 6/10/2005 32 #VALUE!
4/25/2005 6/15/2005 38 #VALUE!
4/8/2005 8/8/2005 87 #VALUE!