Well, I AM one without P6 problems so far... My PC is only an AMD Athlon XP 2500+, 1Gig ram, Radeon 9800 Pro graphic card, so it's clear I'm NOT a CL stockholder (I would like it...). For now, I find P6 much more responsive that P5, expecially when I choose to end prematurely a render - it has not shown the annoying habit of lock up the prog if I hit the "Cancel" button... :P