as soon as i boot from iPC 10.5.6 dvd and enter verbose [-v] mode i get this :

Darwin/x86 boot v5.0.132 - Chameleon v1.0.11
Build date: 2008-06-09 20:12:22
VESA v3.0 32 MB
Press any key to start...


And then:

Loading Darwin/x86
Loading kernel mach_kernel
Loading HFS+ file: [mach_kernel] from 4230a80.
Loading HFS+ file: [mach_kernel] from 4230a80.
LoadingDrivers: Loading from/System/Library/Extensions.mkext
Loading HFS+ file: [/System/Library/Extensions.mkext] from 4230a80.
Loading HFS+ file: [/System/Library/Extensions.mkext] from 4230a80.
_ (this just blinks)

it just hangs here with the cursor( _ ) blinking. what do i do?

i have tried -x -f -v and -cpus=1. nothing is working.
my pc config is:

pentium 4 2.66 ghz (sse3 compatible)
320gb hard disk
640 mb ram (512+128)
no graphic card
ps2 mouse and keyboard

please help. i want to install this from a long time. pls pls pls