If checked, uses the random number generator that was used in Four Winds 
versions up to 2.09. Versions from 2.10 up to 
2.10g used the new advanced random number generator that produces statistically 
better randomness. Versions starting from 
2.10h let the user specify whether to use the old random number generator, or 
the new one. The default value is that the 
new random number generator is used in all new games. In loaded games the 
default of the version of the loaded game will 
be used.
To specify the kind of random number generator to be used in new games:
Related topics:
Arranging tiles manually
Arranging tiles for scoring
    Displaying hands after deal is over
    Showing Wall automatically at the start of the deal
    Displaying Wall and Dead Wall after deal is over
Setting the time for auto move
    Setting the discard delay
Using auto acceleration
    Showing the source of discard
Enabling or disabling overrides for displaying discards
    Enabling or disabling the Undo feature 
Enabling or disabling replay of hand
    Enabling or disabling hints
    Getting hint for robbing a Kong
Hiding competition