IriX64@FthrNtr ~ $ cd /usr/brlcad-7.10.0 IriX64@FthrNtr /usr/brlcad-7.10.0 $ cd bin IriX64@FthrNtr /usr/brlcad-7.10.0/bin $ ./mged -c BRL-CAD Release 7.10.0 Geometry Editor (MGED) Thu Apr 12 00:19:25 EST 2007, Compilation 2 IriX64@FthrNtr:/home/IriX64/brlcad-7.10.0/brlcad-7.10.0/src/mged Itcl_Init error Can't find a usable itcl.tcl in the following directories: /usr/brlcad-7.10.0/lib/itcl3.2 ./../lib/itcl3.2 ./../library ./../../library ./../../itcl/library ./../../../itcl/library This probably means that Itcl/Tcl weren't installed properly. If you know where the Itcl library directory was installed, you can set the environment variable ITCL_LIBRARY to point to the library directory. attach (nu|X|ogl)[nu]?