I do..and the demo works great on my mac ...but on my pc laptop rig: Dell Inspiron 5150 P4m , 1 gig ram, 5200 rpm system drive, 7200 rpm firewire audio drive --chained to Audiophile It's real buggy. Plays fine then start getting clicks and pops..then drastic drop out. I want to buy PT m-powered for that system, but i can't figure out what the problem is.