Mouse zoom refresh problem

I’m using Blender 2.7 and I have a Logitech G400.

"The problem is that I scroll up or down with the wheel, but the view doesn’t zoom in or out until I move the cursor. When I move it, the view refreshes instantly with as many scrolls as I did either way.

I searched the forum but I couldn’t find anything, except for the zooming problem everyone has when you get too close to a model.

Every little help is appreciated!"

That’s from Lysanders earlier message.

I have the same problem. Also, if i move the mouse from the middle to the side bars the view goes back to user view from ortho (and screwes up my ref image).

I think the 2 problems are the same, if anyone could help that would be appreciated!