There is no doubt that the general conviction of most Muslims is that the Bible contains original revelation from God but is supposedly corrupted to one degree or another. As strong as this conviction is, little evidence is given to support it.
However, this conviction seems to have developed later in Islamic history, and it appears that the Qur'an, the Hadith as well as various Muslim scholars actually support the trustworthiness of the Biblical text.
This page has the purpose to give links to a collection of articles on this issue, some introductory, some very comprehensive.
Answers to particular Muslims and their responses to the above
Articles on other websites
However, despite the claimed confirmation, it is obvious that the Qur'an contradicts the Bible in many foundational teachings and a multitude of historical details. This is the ultimate contradiction and self-destruction of the Qur'an.
Answering Islam Home Page