Hi and sorry for my horrible english ;-) I have YDL 3.0 on my Ibook. How can i use the harware acceleartion? In the preference pane, i can check the box "activated 3D hardware acceleration". I don't understand because i have read this on the web site of YDL : http://www.yellowdoglinux.com/support/hardware/breakdown/video_hw.php?sys_model_id=8 thanks to help me!