loaded into ram: clicked and worked immediatly.

But before I had Digibooster 3.0 demo runnning and configured, maybe this is better before trying 3.1 demo

This demo is useless, it does not work.

Extract it, run it and the first time run, set proper audio mode requester pops up, close that requester (can't do anything else as pointer is in sleep mode for all other windows) and you instantly get another saying audio hardware can't be allocated. close that (can't do anything else here either) and digibooster quits.