You can set indoor light frequency in [Indoor
Light Frequency] option. When RAYFace is
installed, it is automatically set between 50Hz
and 60Hz according to the country setting of
the operating system.
If the operating system's country setting is
different from the actual one, you have to set it
according to the country’s mains power supply
specifications.
If you set [Show subject list at program start]
option, the full list of subjects are displayed
when RAYFace starts. If the option is left
unchecked, the list of registered subjects is not
visible, and you have to search for the subject
that you want to select.