Is God responsible for...?

Some people thank God for their good fortune, and some blame Him for their misfortune. Most Christian Doctrine teaches us that thanking Him is expected, but that blaming Him is near blasphemous. I don't see how one can exist without the other. If God is responsible for the successes of a person's life, then he must be responsible for their failures, not solely, but at least equally. You cannot assign fault after the outcome; if God is in any way responsible for a series of events, then He must be given, and accept, His share of the responsibility of the outcome, because it would be a result (directly, indirectly, solely or in part) of His actions.

Another thought: if man is governed by predestination or religious-based fate, God must be solely and ultimately responsible for all things. But if we have the gift of choice, as I believe we do, how much blame or praise does God deserve, given that any occurence is the result of the definite actions of various people from a pool of infinite choice and therefore infinite possibility, otherwise ungoverned?