Is the King James Bible the only true Word of God?
I'm not much into the Bible version debate. All of the translations pretty much read the same. The New International Version Bible is probably the most attacked of all the modern versions, but any errors it might contain are subtle ones. The NIV doesn't say something like, "Our Lord Satan which art in heaven" (Mat. 6:9). Some people are so fanatical about the exclusive truth of the KJV that they would doubt your salvation if you were saved by reading another version. Other folks believe other translations are the Mark of the Beast.
Some fringe groups have produced translations that are very harmful to the true Gospel message, but I believe the real doctrinal train wrecks come when people misinterpret the Bible. I primarily use the KJV, but I don't make a religion out of my choice.