Listers, Here you can read what you'd be able to get with QE enabled: < http://www.apple.com/macosx/pdfs/Quartz_TB.pdf > My G3 iBook 600MHz/640Mb RAM/ATI Rage Mobility 128 does not show the 'Fast User Switching' animation. My G4 Cube 450MHz/1.5Gb RAM/NVIDIA GF2 MX does it nice and wisely. LM >>> athomp2 at mac.com - 2004/03/17 14:51 PM >>> nope. i use it on my g3 500 ibook all the time. it has 8mb of vram. what is not possible is the fast user switching transition animation. this is an arbitrary capability, i believe. i have iphoto 4 installed on this same ibook, and the cube slide show transition animation works very well. i believe the fast user switching animation would work fine as well. basically, i believe quartz extreme is a lot of hooey, um, hype. it came at a time when apple was getting blasted for basic gui speed/performance. so, running panther on my ibook with 640 mb ram and on my cube with 832, and a gf2mx card, i'd say the biggest differentiators are Altivec and the 100mhz bus. --alan ----------------------------------------------------- Esta comunicación por correo electrónico, así como cualquiera de los archivos adjuntos que incorpore, contiene información privada y confidencial para uso exclusivo de sus destinatarios originales. Queda prohibida la difusión, copia o utilización de dicha información por terceros. Si usted lo recibiera por error, por favor, notifíquelo al remitente y destruya el mensaje con todas sus copias -----------------------------------------------------