diff --git a/examples/2-pyridone/2-pyridone.cfg b/examples/2-pyridone/2-pyridone.cfg
index 82457d9b..23f53496 100644
--- a/examples/2-pyridone/2-pyridone.cfg
+++ b/examples/2-pyridone/2-pyridone.cfg
@@ -1,5 +1,6 @@
 verbosity=1
 xcFunctional=PBE
+FDtype=4th
 [Mesh]
 nx=128
 ny=128
@@ -12,30 +13,17 @@ lx=24.
 ly=24.
 lz=12.
 [Potentials]
-pseudopotential=pseudo.N_soft_pbe
-pseudopotential=pseudo.O_pbe
-pseudopotential=pseudo.C_pbe
-pseudopotential=pseudo.H_pbe
-[Poisson]
-solver=MG
-max_steps_initial=10
-max_steps=10
-bcx=periodic
-bcy=periodic
-bcz=periodic
+pseudopotential=pseudo.N_ONCV_PBE_SG15
+pseudopotential=pseudo.O_ONCV_PBE_SG15
+pseudopotential=pseudo.C_ONCV_PBE_SG15
+pseudopotential=pseudo.H_ONCV_PBE_SG15
 [Run]
 type=QUENCH
 [Quench]
-step_length=1.5
 max_steps=200
 atol=1.e-7
-num_lin_iterations=2
-ortho_freq=20
-interval_print_residual=10
 [Orbitals]
 initial_type=Gaussian
 initial_width=1.5
-[ProjectedMatrices]
-solver=exact
-[Restart]
-output_type=single_file
+[Poisson]
+FDtype=4th
diff --git a/examples/2-pyridone/README b/examples/2-pyridone/README
index 351b7012..663f5855 100644
--- a/examples/2-pyridone/README
+++ b/examples/2-pyridone/README
@@ -1,6 +1,6 @@
-ln -s ../../potentials/pseudo.N_soft_pbe
-ln -s ../../potentials/pseudo.O_pbe
-ln -s ../../potentials/pseudo.C_pbe
-ln -s ../../potentials/pseudo.H_pbe
+ln -s ../../potentials/pseudo.N_ONCV_PBE_SG15
+ln -s ../../potentials/pseudo.O_ONCV_PBE_SG15
+ln -s ../../potentials/pseudo.C_ONCV_PBE_SG15
+ln -s ../../potentials/pseudo.H_ONCV_PBE_SG15
 
-srun -ppdebug -n32 /nfs/tmp2/jeanluc/SVN/MGmol/mgmol/branches/bin/mgmol-pel -c 2-pyridone.cfg -l lrs.in -i coords.in
+srun -ppdebug -n32 mgmol-opt -c 2-pyridone.cfg -l lrs.in -i coords.in
diff --git a/examples/2-pyridone/coords.in b/examples/2-pyridone/coords.in
index 911b5cdf..390ff902 100644
--- a/examples/2-pyridone/coords.in
+++ b/examples/2-pyridone/coords.in
@@ -1,13 +1,12 @@
-N1	1	10.0818    7.9149   6.    1
-O1	2	14.2787    7.9126   6.    1
-C1	3	 7.9625    9.1867   6.    0
-C2	3	 7.8388   11.8070   6.    0
-C3	3	10.1050   13.1610   6.    0
-C4	3	12.3830   11.8680   6.    0
-C5	3	12.2810    9.2255   6.    0
-H1	4	 6.2219    8.0878   6.    1
-H2	4	 6.0028   12.7142   6.    1
-H3	4	10.0754   15.2192   6.    1
-H4	4	14.2295   12.7482   6.    1
-H5	4	10.2332    6.0038   6.    1
-
+N1	1	10.0818    7.9149   6.
+O1	2	14.2787    7.9126   6.
+C1	3	 7.9625    9.1867   6.
+C2	3	 7.8388   11.8070   6.
+C3	3	10.1050   13.1610   6.
+C4	3	12.3830   11.8680   6.
+C5	3	12.2810    9.2255   6.
+H1	4	 6.2219    8.0878   6.
+H2	4	 6.0028   12.7142   6.
+H3	4	10.0754   15.2192   6.
+H4	4	14.2295   12.7482   6.
+H5	4	10.2332    6.0038   6.