Nance was interested in seeing P4 vs P5 tests on teh same machine - so I've set-up my notebook to do exactly that test... Now one thing tha tI note is that neither P4 nor P5 renders this scene "correctly" or, rather, "as intended". check out: P5: The walls in (ugh, double-sided props. Should be banned) P4: The right "tail" of the dark-haired lady's jacket in - an odd dark spot. The leg showing through? Join between the two walls. But I digres... PIII 800 Notebook PC Win2K Pro SP3 + updates 256MB 100MHz RAM P4: 1:43:46 1:35:92 1:30:34 P5: 3:27:84 3:23:67 No displacement (not used in the scene anyway) 2:21:28 No displacement, Ray-Traced with ray-traced shadows turn on 4:05:75 4:18:30 Hmmm...some variation, probably due to the hard drive access (not enough RAM) the odd squares (two-faced props!) and the mountain of things cluttering up my system tray (battery monitor, twiddly mouse replacement utility, CPU/screen/whatever power management, firewall, antivirus, memory manager, hot-swap drive bay manager, partridge in a pear tree etc. etc.)