i boot ubuntu 12.04 LTS from a live cd, it shows me the purples screen of ubuntu then it shows a black screen, it freezes and never boot, note that i have downloaded ubuntu 3 times and burned it on 3 dvds and it doesn't work, something is wrong.
i tried all types of burning and also tried using a usb, nothing worked, someone told me that it's because i don't have an nvidia graphic card, in fact i have intel r graphic card, would that be the cause of the problem?