Im a newbie to Subdivision modeling and wondered if you can tell my why the 3d grabber tends to change orientation. If I drag select the same vertexes, the grabber will align differently? Also, when I hit the tab key to select an exact position, the direction of movement is backwards. For instance, if in a front view, I choose to move a vertex to the left and I put a negative number in, the vertex moves to the right? Similarly, if I tab-select a vertex to move it to the right, it requires a negative number? Any thoughts?