Hi all my spec

Gigabyte GA-EP45-DS3
Core 2 Quad Q6700
XFX ATi Radeon HD4870

the above is my pc spec, I have iDeneb v1.5.1 OSX86 v10.5.7, I burnt the ISO to DVD and booted from the DVD but all I get is a white screen with a grey apple and a timer on the bottom but nothing happens ?

Do I need to try a different version of OSX86 or is this one the best ?