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This is my hardware

I have refurbished the system with more RAM (3GB total now) and a new CPU(Core2Duo E2700 2x2.53Ghz)

When I try and boot the live USB of Ubuntu 12.10 amd64 I get the boot loader menu but when I press enter to boot from live USB, the system beeps and nothing happens. I can keep pressing enter but it just keeps beeping.

I have reflashed the BIOS to the most recent version for the chipset. Is there some option I haven't enabled perhaps? What could it be?

I am running 12.10 32bit with no issues.

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Have you tried downloading again the ISO? Sometimes the image gets corrupt. – Lucio Feb 24 '13 at 3:28
I checked the md5 it was spot on. – Scarberian Feb 24 '13 at 4:08

is a problem in the /syslinux/txt.cfg of the bootkey , where it says "/casper/vmlinuz", this has to be "/casper/vmlinux.efi", then you should be set

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I am going to check this asap, I will have access to the machine in question soon! – Scarberian Mar 2 '13 at 3:37

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