[ubuntu] boot menu already showing up before installation

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http://ubuntuforums.org – I am very new and this is my very first time installing ubuntu. I am aiming to dual boot ubuntu with windows 7. I haven't started installing ubuntu yet, But I will start as soon as i get my ethernet cable to use it during the installation for updates and drivers (i am currently using wifi on my laptop). So here's what happened: -i burned it to disk -after burning i restarted to see if working -it didn't boot to live cd so i clicked on the third option "help me to boot from cd" -i installed the boot cd helper -booting from ubuntu now worked -the boot menu shows everytime when rest (Hardware)