Q: When I move something with the move tool, it always snaps back to where it was before. I think this behavior started about the time I installed the update to 7.01. I can't see where to fix this in preferences or anywhere else.

A: To prevent the objects from snapping back, switch your Color Picker from Apple to Adobe: Preferences>General>Color Picker:Adobe. You will have to quit and relaunch Photoshop for the change to take effect.