Clips Not At Beginning When Dragged To Timeline

I'm a newbie to Davinci Resolve and am totally impressed with what I'm able to do already.
I've noticed that recently when I drag the first clip to the timeline on a new project it gets set at about the 4 second mark and I have to drag it back to the beginning of the timeline.
Have I inadvertently changed a setting somewhere?
I've noticed that recently when I drag the first clip to the timeline on a new project it gets set at about the 4 second mark and I have to drag it back to the beginning of the timeline.
Have I inadvertently changed a setting somewhere?