dear sir/madam i am new to gromacs. i am trying to install DSSP,i am having centos. i downloaded the DSSP and pasted it in /usr/local/bin directory while i am running it shows the following error Failed to execute command: /usr/local/bin/dssp.exe -na ddLV8RKo ddvXmynp > /dev/null 2> /dev/null please help me to get the solutions. thanks in advance uma