bruce,

right click on the DSP preset and select 'Copy to New Preset' and then name your new preset and make your adjustments.

If you do this with 'Musiclogic' you will get a new DSP called 'MusicLogic2'

Mike

PS. make sure you've got the latest software version:- Configuration Program
3.5.0.2978

Meridian 800 DVD V4, DSP7200.2's