I am now using Gromacs4.6.3 to deal with DNA-ligand interaction. I use the parameters rvdw = 1, rlist =1, rcoulomb =1, fourierspacing = 0.16 and pme_order=4, but I know that the values of fourierspacing and pme_order are correct. what are the correct values for these two parameters? Could anyone please help me? Best regards