If you ever figure it out, please share. (;>)
Many intelligent people believe in God for any number of reasons. My question to you is, why do you automatically question the intelligence of someone who does not agree with you on this issue? It comes off as a personal attack thrown out there becuase you do not wish to engage in a serious conversation on the issue. I see this often tactic often. Even when evidence is presented that a creationist has based his/her opinion on, it is simply laughed at and discounted rather than addressed. That tells me there is something to hide on the part of those behaving in such fashion.
Ideas and Opinions by Albert Einstein might provide some insight for people who are deluded into thinking of themselves as intelligent.