This package (openmotif-2.2.1-i386-1.tgz), is Open Motif 2.2.1 compiled for Slackware. INSTALLATION: Slackware's Open Motif and LessTif packages should not be installed at the same time (though it may be possible to make them work together if you compile them both from source and put them in different locations). So before you begin, remove lesstif from your system: removepkg lesstif Then, install the Open Motif package: installpkg openmotif-2.2.1-i386-1.tgz Open Motif will now be installed. IMPORTANT UNINSTALLATION NOTES: The Open Motif package will overwrite several X Window System files with its own versions. Therefore, to remove it you must follow these steps: Remove the Open Motif package: removepkg openmotif Then, you'll need to reinstall these packages from Slackware's slackware/x directory: installpkg xfree86-4.2.0-i386-2.tgz installpkg xfree86-devel-4.2.0-i386-2.tgz And, if desired, this package in slackware/l: installpkg lesstif-0.93.18-i386-1.tgz Have fun!