Concerning your DP problem: please select f.i. the file "Special Edition Demo#1_DP5_1" in the finder and hit Command-I to open the Info window. There, you can find a menu at "Open with:", which should give you the option to open the file with Digital Performer. Please select the application and try to open the Demo file now - does that make a difference?
Best, Marnix
I already tried that ... but still no joy ...
Anyway, now that I have the presets sorted I can just make my own demo project using the raw midi - which I can open no probs.
Thanks for the help!