Ok first of all, I am new here so hi!

Second of all, I've tried searching around for this but I haven't found what I'm looking for - when I try and launch my iPC 10.5.6 Final dvd that I burned (to install Mac os x) it loads up fine but then after a few minutes into loading up everything from the dvd my computer just turns off. It happens both when I try a verbose boot and a normal boot from the dvd. The funny thing is that this prompted me to go and look through my bios setup, I didn't change anything but a few minutes into looking at that my computer just turned off again. Now everytime I access the cd or my bios my computer will just turn off by itself after a few minutes.
But I can still load up my copy of Vista fine and if I boot of my copy of Knoppix Linux live cd that I have.

My PC is as follows:
- It is a Toshiba Equium A210-17l Laptop
- AMD Turion 64 X2 TL-58 Processor (1.9GHz, 667 MHz FSB, 1 MB Cache)
- 2 GB Memory
- 160 GB Hard Drive
- ATI RADEON X1200 Graphics Card
- Has a phoenix technologies bios
- Has an ATI chipset

I'm fairly new installing mac os x on a pc, if this problem hadn't turned up then I would have been able to sort the rest out myself, but no, it has to happen to me - meh! its just life...

Thanks in advance

Brad