If you've seen the Firefly benchmark render tests, the Mac, cycle for cycle, is about 20% slower then the PC (although I havn't been to the site for a while). I have 2 Macs here at work, one a G4 , 1.4GHz, 2 gig RAM, OS 10.3, and P5 SR4. The other a G4, 733MHz, 1gig RAM, OS9.2 and Poser 4.2 ProPack. Just as a quickie test I timed the following actions (p4/p5 in seconds): Load Poser to empty scene - 6.04 / 15.11 Load Blank M3 - 25.34 / 8.20 Load M3 Med. Textures - 7.22 / 7.85 Load M3 All Expressions !INJ - 13.92 / 25.36 Load M3 Ascending pose - 3.26 / 4.02 Big speed improvement in P5 Figure loading but P4 seems to be faster in everything else. I probably notice speed issues more cuase I still use PPP OS9. Best; Dan