If the user attempts to start up a DL_POLY_2 simulation with the restart or restart scale directives (see description of CONTROL file,) the
program will expect the CONFIG file to contain atomic velocities as
well as positions. Termination results if these are not present.
Action:
Either replace the CONFIG file with one containing the velocities, or
if not available, remove the restart directive altogether
and let DL_POLY_2 create the velocities for itself.