I have a computer on which Windows XP recently crashed, so I thought I would try Ubuntu. I downloaded Ubuntu 32-bit from the website and burned it to a DVD using Nero.
I set the boot menu of my computer to boot from CD/DVD. After, I booted from the DVD. It was very slow (I think this was because I have IDE DVD ROM) and a purple screen launched then the try Ubuntu or install Ubuntu menu suddenly came in. I clicked 'Install Ubuntu' button several hundred times but it didn't work.