Try using another distro, Some seem to work better for some than others. iDeneb, Kalyway and iPC seem to work for me the best, There is Atkos v7 and XxX as well.
DV1300 - iDeneb 10.5.8
DV4 - iPC 10.5.6-Some bugs.
MBP 15" i5
iMac 17" G4
Problem was the 4gb ram... with 2gb the installation worked, very strange...
To boot i had to turn off usb mouse/keyboard in bios and unplug an extern harddrive