Dear all, I am just starting using dosemu. I have Debian 8 guest running in VirtualBox and am connecting to it using Putty on Windows7 host. While trying to execute "dosemu remdir_c.bat" that calls DOS exe file I am getting following error: root@myhost:/home/user2/DOS/H# dosemu remdir_c.bat ERROR: X: Can't open display "10.0.2.1:10.0". Either the connection was refused and you do not have enough access rights to connect to your X server or there is something wrong with the contents of your DISPLAY variable. If the connection was refused then please consult your system administator or read the X documentation for a solution (use xauth, xhost, or ssh -X). I tired: - Setting enable X11 forwarding in Putty with X Display location on 127.0.0.1 - Setting export DISPLAY="10.0.2.1:10.0" with different IPs: 127.0.0.1, localhost, 10.0.2.1, 10.0.2.2, etc. - installing xauth - copying .Xauthority from user2 home to root - running "xauth list" - in /etc/ssh/sshd_config: X11Forwarding yes Any help would be highly appreciated, Thanks a lot in advance Alex