A special note for AIX users of Ferret Two environment variables unique to the AIX must be set for Ferret to run properly. The FORTRAN run time environment variable XLFRTEOPTS needs to be set to "namelist=old" in order for Ferret namelist reads to be successful. Namelist reads are used in accessing an early Ferret data format called "GT"; some of the demo data sets distributed with Ferret are in this format. An example of the command to set this environment variable in the c shell is: % setenv XLFRTEOPTS namelist=old In addition the environment variable LANG must have the value "C", set in the c shell in this way: % setenv LANG C These commands are included in the ferret_paths file template, used to initialize environment variables needed to run Ferret. The environment variables will be defined automatically when the command "source ferret_paths" is given. For more information on ferret_paths please see the Ferret installation guide.