Muslims tell us that the Qur'an has been perfectly preserved. Oddly enough, there isn't a shred of evidence for this preposterous claim. Indeed, a brief examination of the history of the Qur'an reveals significant changes to the text. In this video, L'Orientalist shows that changes were taking place even after Uthman produced his revised, standardized edition of the Qur'an.
Answering Muslims - Did the Umayyads Change the Qur'an?
Did the Umayyads change the Qur'an? - YouTube