I'm a new GROMCS user. I've run an NVT equilibration of a explicitly solvated protein-ligand complex, I've extracted frames throughout the trajectory in both .pdb and .gro format and I've open them in VMD and I've checked that the simulation's gone fine. However, when I try to open in VMD either the .trr or .trj trajectory file just the water box appears (as white single-point dots, not the whole water molecule) but not the protein or ligand. Have any of you experienced this issue before? Could it be a problem of the .trr/.trj VMD plugins? I'd really appreciate you commentaries.