can't install, computer ignores cd at boot time

[Rul]

I have and acer aspire 5251-1805 and I have a problem to install ubuntu. When I look at the Bios info there are 6 boot options including booting from CD. But then when I start the computer and press f12 there are only 3 options listed and there is no option to boot from the cd. What should I do?

[oldos2er]

How did you create the LiveCD? The problem you're describing usually indicates the ISO wasn't burned as an image. See https://help.ubuntu.com/community/BurningIsoHowto

[Jetso]

What are the options?

[virtual_m]

Try to set up 1st boot device in BIOS [F2], then save and exit.

[Rul]

I have already set the cd as the main boot option using the bios menu (f2) but it is still ignoring the cd. I know the cd is fine I prove it with another computer and worked ok.

I was thinking in using wubi and then create a new partition and move the linux installation there, I read somewhere this can be done Is it really possible?

[oldos2er]

What are the hardware specs of your computer?