## Troubleshooting ### License Manager Log Files On UNIX and Macintosh systems, output from the license manager is written to a file named `lmgrd_log.txt` in the `license` directory of the product installation directory. ### UNIX: Web Browser Does Not Launch On UNIX systems, the license wizard attempts to launch one of a number of web browsers. If none of these browsers is available on the UNIX path, the License Wizard will not be able to launch a web browser from within the License Wizard. To remedy this situation, set the IDL_ONLINE_HELP_HTML_BROWSER environment variable to specify your preferred browser, then launch IDL and run the License Wizard again: Exit the License Wizard. At the shell prompt, set the IDL_ONLINE_HELP_HTML_BROWSER environment variable. The syntax for doing this will depend on your shell, but will most likely be similar to one of the below. Assume you use the Firefox browser, and that the command to launch Firefox is present on the UNIX path (that is, you can launch the browser by typing `firefox` at the shell prompt): For C shell (and other shells that use C shell syntax, such as `tcsh`):
    setenv IDL_ONLINE_HELP_HTML_BROWSER firefox
For the Bourne shell (and other shells that use Bourne shell syntax, such as the `bash` and `korn` shells):
    IDL_ONLINE_HELP_HTML_BROWSER=firefox
    export IDL_ONLINE_HELP_HTML_BROWSER
Note You may want to set the IDL_ONLINE_HELP_HTML_BROWSER environment variable in a startup file (`.cshrc` or `.profile`, for example); its value will be used if you open a web browser using IDL's ONLINE_HELP routine.
Change directories to the `bin` subdirectory of the IDL installation directory and launch the `ittlicense` program. For example, if you installed in the default location, you would issue the following commands at the shell prompt:
    cd /usr/local/itt/idlxx/bin
    ittlicense
where `idl` `xx` is the name of your IDL directory (`idl70`, for example). IDL Online Help (September 20, 2007)