problems using itl

Hi,

I am using ITL, for the purpose of solving linear equations using 
iterative techniques.
My matrices are dense and of the order of 3500 by 3500, and lu_solve is 
very slow as expected.
I tried using the iterative techniques in ITL, but i am consistently 
having problems compiling my project.
The error i always get is this:

/opt/include/mtl/oned_part.h:250: error: `nz_struct' undeclared (first 
use this
   function)

It seems cholesky.h is the file from which this gets included. What am i 
doing wrong here?

Thanks,
Soumik
_______________________________________________
This list is archived at http://www.osl.iu.edu/MailArchives/mtl-devel/