Thanks for the reply! Most helpfull. I use Windows 2000, and the Pro tools doesn't run on that, win2k is far more stable. I would need to run in Win9X/Me to get it to work. Based on your info I think I'll stick with cool edit, I can get good real time effects with the eax on the sblive (changes pitch without altering speed, v kewl.) Again, thanks for the help! Rich.