Hi,
I’m using Blender on a MacBook Pro running OS X 10.9.3 and I’ve never experienced problems like this. I have recently bought a new mouse, a Logitech M510 and am now experiencing very jittery controls when using Blender to a point where it’s completely unusable.
Here’s a quick recording of the problem: http://gfycat.com/MiserableGiantDove
Thanks for any tips in advance!