Hello,Continuation has the installation of the basic system successfully known my PowerBook 15 " 1.5 GHZ. I met a problem when I execute X. He jams just like that and anything has to make I am obliged to restart him in the hand... Not very appropriate is that anybody has already had this problem? Thank you for avaice for your of help.I have a mobility ati radeon 9700 for graphics board... Greetings Fabien