List of deities that have not been "proved" or "disproved":
Jesus, his Father, and his Holy Spirit (Is that three or one???)
Yahweh, the Hebrew God
Allah
Zeus and all the other gods of the Greek Pantheon
The Gods of Ancient Phoenecia
The Gods of Ancient Egypt
The Gods of Mesopotamia
The Gods of the Aztec, Inca, Maya...
Thor and his Thunderous Hammer
The Flying Spaghetti Monster (deity of Pastafarianism)
The Celestial Teapot, which orbits the sun somewhere between earth and Mars.
....
bigandbrolic, read over this list. When you figure out why you don't believe in all but one of these gods, you will understand why I don't believe in that last one.
To quote Richard Dawkins, "We are all atheists with respect to most of the gods that mankind has ever worshiped. Some of us just go one god further."