> how do I remove Gromacs 3.1.3? Naturally, I have the O.S. linux fedora. > Thank you. Delete it by hand. -- Vitaly V. Chaban School of Chemistry National University of Kharkiv Svoboda sq.,4, Kharkiv 61077, Ukraine email: chaban at univer.kharkov.ua skype: vvchaban tel.: +38-097-8259698