Ok I just installed iDeneb 1.4 (10.5.6) on my old Dell Inspiron 9200 and when I try to boot, it starts to boot and then, nearly instantly after the actual OS starts to boot, it just shuts down. I did notice a slight scratch on the DVD, and I am wondering whether anybody else has had problems with Dell Inspiron 9200s or whether I just need to burn a new install DVD. I did try to boot with safe mode on (-x), but it did not do anything.

Please post your full specs, no links, btw did you try to boot with

cpus=1 -v -x -f