While I would like to address this at length, and I already owe a response to Alamo, I must plead lack of access to my office computer, a problem that will be remedied early next week. I do have my (now ancient) Blackberry on which I can reply, but also on which my fingers do not so nimbly fly.
Betty, suffice it to say that God is not of divided mind and does not set aside His omnipotence to access His omniscience and vice-versa. History inexorably goes where God wills it and not where it accidentally happens to stumble.
Certainly it is true that not a sparrow falls without God knowing of it. This observation goes to divine omniscience.
But from there it cannot follow that God is sitting up there in Heaven, with His trusty divine pea-shooter, blowing sparrows out of the sky. This goes to divine omnipotence.
God need not "overdetermine" the universe because His original Creation was faultless — His Word of the Beginning, Logos Alpha to Omega; eventually the Son of God Incarnate, whose inexhaustible suffering and kenosis was performed as a Man on the world stage, out of the perfect Love of the Son for His Father, so that we sinful, "fallen away" humans may be restored — after the sin of Adam — to the good Grace of our divine Father, and achieve our divinely-ordained status as images of Christ, by the Light of Christ, according with His holy Grace, not to mention Love....
Hope you get your computer problem resolved really soon, dear brother in Christ. It can be such a "bummer" when these critturs go down — one can become accustomed to and very dependent on them in so many ways. I speak from experience here!