I can't boot from DVD

[joejack2100]

The computer i'm trying to boot from is a

Lenovo Y510

I have

Pentium Dual Core 1.73 GHz

2 GB Ram

32-Bit OS

30 GB Hard Drive with 8 gb space left

104 GB Hard Drive with 71 gb space left

 

I'm planing on installing Leopard on my 104 GB

 

But the problem i'm having is i can't boot from my dvd

so i tried booting vista dvd

and same thing didn't work

so i tried booting the Lepoard DVD on my other Laptop

it worked but got stalled somewhere in the beginning

plus its a crappy computer

 

So the dvd is bootable but just not with my y510

 

I'm using

iAtkos 2.0i

Kalyway 10.5.2

 

I haven't tried kalyway

but i think i'll get the same result

 

I burned both the vista dvd and iatkos at 4x speed on nero

 

I tried changing boot order so it'll boot the Cd/DVD drive first

but it still didn't

 

when my friend gave me iatkos 1.0i first

i put it in my laptop the white cursor started to blink but thats it

so i restarted and tried again same thing

so i downloaded iatkos 2.0i

but now when i put in both cd's nothing happens