I have a decent computer. 1.83 core duo macbook 2 gigs ram. I had 3 programs open, and I noticed that my memory and CPU monitors were maxed and the fans were going full speed. I wasn't doing ANYTHING in the program. It was just sitting. I open up activity monitor for a more detailed look then my menu bar stat program could give, and it said it was using 192% if my processor (it may not sound like it makes sence, but remember 2 cores, 200% total) and 80% of my memory and 1.7 gigs of virtual memory! Dreamweaver was open and it wasn't using a fraction! I never had this problem in amadeus 2, just the pro version. AND I WASN'T EVEN DOING ANY EDITING! This may not be a common problem, but it is a big one...so i can't really recomend this program, armadeus II does the job.