this is a program called Leopardassist but this way is probably bettersee below. it is widely published on the web: For those with PowerBooks or other Macs that may or may not work with LeopardAssist: 1.) Place the 10.5 Install disk in your drive. 2.) Restart your Mac (don't use on the installer on the disk) 3.) After the chime, hold down COMMAND+OPTION+O+F until you see a light gray screen with black text 4.) let go of the keys and type in the following commands EXACTLY as shown, and hit the RETURN key <http://www.insanelymac.com/forum/topic/89640-leopard-on-powerbook-g4/#> after each line (you will see an "ok" confirming what you typed was correct): dev /cpus/PowerPC,G4 at 0 d# 867000000 encode-int " clock-frequency" property d# 867000000 encode-int " min-clock-frequency" property d# 867000000 encode-int " max-clock-frequency" property multi-boot Select Leopard Install DVD this should work fine for you! Enjoy ! On 08.07.13 04:35, "John Sparks" <jmsparks1 at verizon.net> wrote: >Mr. Mac Guy: >I understand there is an app that can help load Leopard onto a P/B G4 >867MGH Machine. Where can I get a copy of this App.? >Thank you John Sparks >_______________________________________________ >Titanium mailing list >Titanium at listserver.themacintoshguy.com >http://listserver.themacintoshguy.com/mailman/listinfo/titanium