Obama?...Davis?....who is this guy and why is there so much shadowy goings on around him?

Why did Mr Obama's paternal grandmother say he was born in Kenya? She says she was present at his birth! It's all over the internet. What's going on here? Someone is lying and needs to be held accountable. Even though I didn't vote for him (or McCain either) I respect the office. I'm not trying to stir up trouble, I just really want to know the truth. I hope we all do! The detractors are claiming he refuses to address the issue directly. This does not look good and needs to be clarified by he himself. Am I wrong to bring this up??