i've tried re-installing 10.5.1 but it all fail at the blinking cursor...everything was perfect...but after re-installing and restarting, the "blinking cursor of death" appeared....

i've already read up on forums and tried using the method specified such as writing zero thingy in disk utility but it is still the same

the reason why i re-installed it is because i wanna make it dual boot with Vista and i've set MBR as the partition table of choice

before this, i was able to install it with the vanilla kernal but now it all semms impossible, i gotta use the cd to boot to the operating system....any help guys?