Hi,
There's no Matrix: Enriched setting my dvx100b pal. There's - Norm 1, Norm 2, Flou and Cinelike. Isn't there suppose to be an Enriched setting also?
The user manual for the DVX100B U.S. model lists Normal, Enriched, Flour, Cine. It does not however show Norm 2....maybe your Normal 2 is the Enriched.
Did you buy it new, and do you have the user guide....it should list the options on around page 78.(Maybe the PAL guide is a bit different)