The included LASER.DAT file is an ALM setup file intended for use with laser printers. It includes a printer setup string which will set most laser printers to 6 lines per inch. This setting should be correct for using standard size labels with ALM's default settings. You can use it either by renaming it to ALMSETUP.DAT, by running ALM and giving its name with the /S switch (ALM /S LASER) or by loading it from the Defaults or Print Options menus.