Can't install Ubuntu on Windows XP?

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http://askubuntu.com – I have a Dimension E310 Desktop computer that I wanted to install Ubuntu on. I got the bootable USB and inserted it and all seemed to be going well, when I reached the boot options I obviously selected boot from USB. When I got the the selection menu however, I selected install Ubuntu. The screen went black and I then found myself with a blinking cursor for about 5 seconds. Afterwards, the screen went black again and then went straight back to the BIOS! I've tried this several times and the same result occurs. Any help will be appreciated. Thanks! (HowTos)