These versions of DDLAB where complied for Linux, 32-bit or 64-bit. 32-bit DDLab runs on a 64-bit system, but not vice versa. To check your system, in a terminal, enter: uname -a (if you don't see 64 somewhere, its 32-bit) ddlabm08 behaves mostly as described in Exploring Descrete Dynamics ddlabm08_linux32 ..32-bit compiled in ubuntu 6.04 ddlabm08_linux64 ..64-bit compiled in ubuntu 11.10 ddlabx09 allows bigger networks ddlabx09_linux32 ..32-bit compiled in ubuntu 6.04 ddlabx09_linux64 ..64-bit compiled in ubuntu 11.10 To run DDLab: from the directory with the DDLab files, enter the name of the executable preceded by ./ and followed by & for example ./ddlabm08_linux64 & or ./ddlabx09_linux64 & alternatively, first change directory to "ddfiles" then enter the name of the executable preceded by ../ and followed by & This will keep files generated by DDLab in the ddfiles subdirectory. --------------------------------------------------- font issues in recent linux ubuntu (version 9.04 and later ?): -------------- Recent versions of Ubuntu may no longer have xorg.conf (see below for the xorg.conf setup). The fonts required by DDLab may or may not be available on your system. In case not, the fonts are in directories: 100dpi, 75dpi, misc, which are in the file fonts_dd_linux.tar.gz, which can be downloaded from www.ddlab.org/download These directories should then be placed in /usr/share/fonts/X11/ to restore DDLab contents when uncovered by another window ---------------------------------------------------------- In Kubuntu 11.04 (KDE), "Desktop effects" must be active. In Ubuntu 11.10 (Gnome) you might need to do the following: as root, create a file /usr/share/X11/xorg.conf.d/05-backingstore.conf and putting this into it: Section "Device" Identifier "Default device" Option "Backingstore" EndSection --------------------------------------------------- font issues for older linux versions: -------------- You might need to modify (as root) the X11 config file, which has a different name for different versions of Linux: SuSe (and RedHat?): /etc/X11/XF86Config Ubuntu (Kubuntu): /etc/X11/xorg.conf 1. FontPath: in section "Files" you will see various FontPath(s) listed. if any of the FontPath(s) below are missing, they must be added, otherwise DDLab could crash. Again, the path differs for different versions of Linux. for SuSe (and RedHat?), add the following (if missing) FontPath "/usr/X11R6/lib/X11/fonts/misc" FontPath "/usr/X11R6/lib/X11/fonts/75dpi" FontPath "/usr/X11R6/lib/X11/fonts/100dpi" for Ubuntu (Kubuntu), add the following (if missing) FontPath "/usr/share/X11/fonts/misc" FontPath "/usr/share/X11/fonts/75dpi" FontPath "/usr/share/X11/fonts/100dpi" also, for ddlab to work on the GNOME desktop, add (if missing) FontPath "unix/:7100" 2. BackingStore - to keep the contents of DDLab when changing/hiding windows, the following should be in the config file, in Section "Device" (not Section "InputDevice") you will see various things listed, add: Option "BackingStore" i.e. Section "Device" Identifier "Neomagic Corporation|NM2360 [MagicMedia " Driver "neomagic" BoardName "Unknown" Option "BackingStore" EndSection However, if you switch workspaces (desktops) in KDE or GNOME the previous images in the DDLab window will be lost. In FVWM this problem does not occur. ---------------------------------------------------------------