I run Lightwave 7.5 and Maya 3.0 Unlimited... no crashes, no rendering problems. Have P5. Wont install it. Did the FULL beta test and that was enough for me, I am waiting till the BUGS and EULA issues are addressed. Plain and simple. And for the record... WinXP Pro 1.8 Ghrz 2.0 Gig RAM 260 Gigs of Free Space Normal % of System Operation with background tasks (aol Messenger, Virus and Firewall, P3DO Explorer) Running: Maya - CPU usage 32-43% Lightwave - CPU usage 21-36% Poser 4 - CPU usage 46-89% Poser 5 (beta)- CPU usage 32-100% I can't speak about the cough release version of P5 or the SR-1 service patches since I have removed all Beta versions (prior to EULA information) of Poser 5 and refuse to comply to the terms of the License Agreement. Jack -This figures represent my current operating system only and "MAY" not meet the figures represented by parties not running on my current system.