Maybe. I've asked them, though, and they don't seem to find it a serious problem. They find ways to get around it...I could quote examples if I remembered the vocabulary better. In fact, a number of people seemed confused when I tried to explain my inability to believe.

You can't do it. Yet there are millions of people who are able to do it!

I have spent a long time trying to figure out what exactly works differently about my Christian friends' brains that allows them to really, truly believe without (apparent) cognitive dissonance. Not to say that I would choose to believe unconditionally if I had the ability, but I would like to understand.

I believe this is because their subconscious, rational decision-making process can compute expected utility without being aware of their own operation, and thus being hindered from setting beliefs so as to maximize utility rather than correctness.

Maybe. I wish there was a way of researching this without biasing the results.