Blender.org

When select something like a vertex or edge and use the grab tool, I can only move it by very large incremenets. You can see in the pictures. The first picture is of a selected point. The second picture is of the next position it allows me to drag the point to. It only happens in the file I'm working in. In other files it works fine. Any help would be appreciated.
https://www.dropbox.com/s/s7zkd7enxjvzgu0/point.png
https://www.dropbox.com/s/xjh59xen3xyyhtn/point1.png

Maybe you have snap turned on? (The magnet in the edit window bar)