I have Dell Inspiron 1300 notebook (Celeron-M, 512M...). I am trying to install Leopard (Mac OS 10.5.1) on it. I successfully installed Tiger, and then I am trying to install Leo. But after 5 min of install activity it shows a blue screen without anything and nothing more... no motion further (( Actually Tiger doesn't bootup, dell says that there is no ACPI driver... I was looking such setting in BIOS. It doesn't exist. But it is no matter. Because Leo doesn't even start to install... Help plz !