Received my new 20 iMac Duo 2Ghz Intel Dual Core yesterday, it replaces a 20 iMac G5 1.8GHhz... There is plenty of commentary around the web on the machines themselves, so I will focus simply on my initial findings concerning the performance of Bryce. Because of what I had read concerning Rosetta, and also my experiences with render times on my original iMac, I opted to load the iMac Dual Core with 2Gig of RAM and 256MB of video RAM. (My iMac G5 has 512MB of RAM) So, this is 2-3 hours of playing around... The good news: Launching Bryce didnt seem to take appreciably longer 4-5 dock bounces. Similarly, moving around inside Bryce seemed about as responsive as it was on my iMac G5 subjectively, the micro windows for whole scene and texture previews seem to take very slightly longer to refresh. For renders themselves surprise!!! They are actually faster! I rendered a 1600x1000 image containing 22 objects (13.5 million polygons) at Super (fine art) quality in around 20 minutes (it previously took a few hours). I have also (randomly) imported objects without any problems, etc, open and save dialogs work, as before.... Bryce as you would expect it. My thoughts on this are 1) Bryce is not optimised in any way for G5 processors, so there was little gained running Bryce on G5s, 2) the dual core performance is largely compensating for the performance hit introduced by Rosettas G4 emulation, and 3) the large amount of RAM is the single largest contributor to the improved render times. Now the bad news... I have found that a small number of files will NOT import. I believe this is linked to the known bug where files will only open from the Finders File/Open menu command and sometimes only after fixing permissions. I have found that this bug is worse than ever in 10.4.4 with Bryce 5.5c... I have tried fixing permissions from the boot CD, using Onyx, opening the effected files in every way imaginable no joy. Ill explore further and report back may well be coincidence (they might have become corrupted during the transfer from one machine to another) All in all very nice! Garry