Photoshop <user> Glitch

My color selector is missing. When go to change what color I am using the color selector box does not show up. The eye droper does but it will not let me select a color. This happened because, even though I did not notice right away, everytime I would go to make a color selection the box would creep upward a bit. Like I said I did not notice untill it was too late. The top of the window had already moved off the screen. Eventualy the whole window was gone and I have found no way to retrieve it. I have restared photoshop, reset my view settings, restarded my cpu. What else can I do? Ideas?

Thanks for your help.