exnihilo--- Atheism is actually characterised by a lack of belief. No-- you are not right whe you assume everyone must believe something is responsible for everything that exists-- some of us feel it could be through chance that we arrive here in 2009, not a god (in any of his her manifestations) or other 'reason'.

And I personally am not going to post on this particular aspect of this topic again. It's all there in previous posts (if you have accessed DAM (who no longer visits), you can read Rev, and the others. My typing fingers are tired. Good luck!