IDS 2000 vrs IDS 7.31

Hi everybody. I'd like to bother you with a little poll. I'd like to know about your experiences when you changed from IDS 7.31 to IDS 2000. What plataform is your IDS supported under? Why did you change the IDS version? Did you get any problem with your applications? Did you have an Assertion Failure (AF) since you are install IDS 2000? What about your performances, is IDS 7.31 better than IDS 2000? Did you take any courses about IDS 2000? All answers are going to be welcome. Thank you so much for your time.