And one more thing. You might want to have a look at PMVIS (Partitioned Mesh Visualizer), http://www-users.cs.umn.edu/~oztekin/pmvis/ Regards, -- Eray Ozkural (exa) Comp. Sci. Dept., Bilkent University, Ankara e-mail: erayo@cs.bilkent.edu.tr www: http://www.cs.bilkent.edu.tr/~erayo