YEAR() and MONTH() not working...?

[Michael Geary]

In ViSQL with my DB I enter:

"select
Documents.DocDate
from
Documents
"
and I get 322 rows.

But when I enter:

"select
YEAR(Documents.DocDate)
from
Documents
"

I get 0 rows.

DocDate is a date field. What am I doing wrong? Ultimately, what I want 
to do is:

SELECT * FROM Documents ORDER BY YEAR(DocDate) desc, MONTH(DocDate) asc

that is, I want to sort descending by year, but ascending by month. 
However, this query doesn't work. Please help.

thanks,

michael