Grese Pencil Edit Stroke issues

Hello and Greetings, I’m new to this forum.

I installed 2.78 on a Macbook pro and for some reason when I try to edit a stroke with the grease pencil it will only select one point.

Drag selection doesn’t seem to work.

If I hit A to select all and then try move the manipulators like move or scale then it snaps back to 1 point that is closest to the mouse.

The only way I move anything is with the G key(grab).

Every tutorial I’ve seen people are selecting point and manipulating them with no problem, am I doing something wrong, is it a bug, or did something get reset with the new install.

Any help would be great, thank you.