Fail on Step 4 to Install 12.10

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http://askubuntu.com – I do not get the following message when I try to boot from a disc drive: "Allocate drive space Use the checkboxes to choose whether you'd like to Install Ubuntu alongside another operating system, delete your existing operating system and replace it with Ubuntu, or — if you're an advanced user — choose the 'Something else' option" It hangs for hours at step 2 and I never get to allocate the disc drive where I want to install Ubuntu 12.10. When I cancel there is a desktop but no installation. I have an ASUS M3-79T Deluxe Motherboard. I have 4 HDs on the system. (HowTos)