R help - Mar 2010 - can fda handle NA in y?

I have a matrix with 167 columns, each representing the y values of a
functional.
There are a few scattered NA's in each column.
I have been unable to create a useful fd object with any of the functions in
fda.
The resulting coefficients are all NA.
Is this a known limitation? Is there a workaround?

Thank you.

-- 
Emilio A. Laca                                                 
University of California, Davis