Using the Player Ranges filters allow you to filters stats you have on each player based on the number of players at the table. For example, when you are 10 handed, all stats can be from 10 player hands. When you get 3 handed, all stats can be from 3-4 player hands. This allows the stats to be focused to the current table situation.
More info here:
http://pokeracesoftware.com/hud/tuto...cfgpreffilters
If you are having problems with stats showing up, try turning off any filters. If that doesn't help, post a message on my forum and I'll help you get it figured out.