hi,sir: I have installed lam7.03 in the directory /sjtu2/users/amay1975/cxm/lam and how can i include mpicc in my path? When i configure gromacs,i always tells me such information,"checking whether the MPI cc command works... configure: error: Cannot compile and link MPI code with cc". Please reply to me .Thanks so much. amay amay1975 at 163.com