Now i am using paraview with mpich-1.2.5.2, but when i use this commands: export DISPLAY=localhost:0.0 ~/mpich-1.2.5.2/bin/mpirun -machinefile machines -np 2 paraview the following message appears: "no display name and no $DISPLAY environment variable" What should i do? -- Afonso Paiva Neto e-mail: apneto at mat . puc-rio . br MatMidia Lab. - PUC-RIO Rio de Janeiro - Brazil