Hello ! I am currently working on some bioinformatics project. I installed a software called ProgressiveMauve for genome alignment on the company server. In fact, it needs to forward the X11 window to my mac in order to visualize the alignment. Thanks a lot in advance ! Regards, Mathieu Here is whet I get back when I call the software, I connected with ssh -X <IP> mathieu@xmicr2:~/Bioinformatics/mauve_2.3.1$ ./Mauve connect 132.208.67.10 port 6000: Operation timed out Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable. at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method) at sun.awt.X11GraphicsEnvironment.access$100(X11GraphicsEnvironment.java:52) at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:155) at java.security.AccessController.doPrivileged(Native Method) at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:131) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68) at sun.awt.X11.XToolkit.<clinit>(XToolkit.java:89) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at java.awt.Toolkit$2.run(Toolkit.java:834) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:826) at java.awt.Toolkit.getEventQueue(Toolkit.java:1676) at java.awt.EventQueue.invokeLater(EventQueue.java:955) at javax.swing.SwingUtilities.invokeLater(SwingUtilities.java:1261) at org.gel.mauve.gui.Mauve.mainHook(Unknown Source) at org.gel.mauve.gui.Mauve.main(Unknown Source)