[gmx-users] Another boring imaging question

[david.evans at ulsop.ac.uk]

Dear all,

The coordinates in the .tpr file generated by grompp (extractable via
editconf) are different from those input in to grompp in the .gro file

i.e.
grompp -v -f md_equil.mdp -c input.gro -p input.top -norenum -o
md_equil.tpr
editconf -f md_equil.tpr -o output.gro

results in files input.gro, output.gro which are different. In my
particular case, output.gro has my DNA duplex split in half across
the box. 
Is there a reason for this, or can I stop it? :) It messes up the
trjconv -nojump option.

Thanks 

Dave