32 bit ubuntu-lucid install problem

[osman]

I have installed gggears using apt-get install command. I also installed all available packages with "getfem" or "mumps" in them.

But gggears is quitting during "solve" phase. I am getting the following message:
Prepare
Export mesh
Deallocation
Trace 2 in getfem_models.cc, line 1613: Source term assembly for Dirichlet condition
Trace 2 in getfem_models.cc, line 1622: Mass term assembly for Dirichlet condition
Running solver in a new thread
('nbdof_gear1:', 16551)
('nbdof_gear2:', 36000)
logic_error exception caught
Exception in thread Thread-5:
Traceback (most recent call last):
  File "/usr/lib/python2.6/threading.py", line 532, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.6/dist-packages/gggears/fem.py", line 204, in run
    self.model.solve('noisy', 'lsolver','mumps','max_res',1e-6)
  File "/usr/lib/python2.6/dist-packages/getfem/getfem.py", line 2808, in solve
    return self.get("solve", *args)
  File "/usr/lib/python2.6/dist-packages/getfem/getfem.py", line 2708, in get
    return getfem('model_get',self.id, *args)
RuntimeError: (Getfem::InterfaceError) -- Error in ../../src/getfem/getfem_model_solvers.h, line 283 std::auto_ptr<getfem::abstract_linear_solver<MAT, VECT> > getfem::select_linear_solver(const getfem::model&, const std::string&) [with MATRIX = gmm::col_matrix<gmm::wsvector<double> >, VECTOR = std::vector<double, std::allocator<double> >]:
Mumps is not interfaced

But it is installed:
osman@osman-laptop:~$ aptitude search mumps
i A libmumps-4.9.2 - Shared libraries for version 4.9.2 of MUMP
i A libmumps-dev - Static libraries, shared links, header fil
i A libmumps-seq-4.9.2 - Shared libraries for version 4.9.2 of sequ
i libmumps-seq-dev - Static libraries, header files for sequent
i mumps-test - Example/test binaries using MUMPS

What could be the problem?

Thanks in advance.
-osman