Buddah never rejected Christ being that he died hundreds of years before Jesus was even born. He had never heard Jesus teachings to reject. If he had heard them, I think he would have accepted them, since he taught much the same philosophy. An interesting point...not only does Krishna and Christ come from the same latin root word meaning "enlightened one", but Buddah also means "enlightened one.
traviskicks...perhaps Buddah, Krishna, and Christ were all the same soul? For an interesting study look into the story of Adam Kadmon. It states in summary that Adam, God's son, was reincarnated as many men including David until he finally achieved a life without sin, therefore cleansing all mankind through his sacrifice. In other words the soul that plunged all mankind into sin also had to be responsible for saving it. Karma. But, the actual story is more complicated than that. Not saying I believe it, but it is interesting.