Here is my problem: I use MMB+alt(scroll wheel) to move around the viewport in one of the orthographic views. However sometimes (maybe after about 3-4 consecutive clicks) it zooms out all of a sudden and i have to zoom back in (which is VERY annoying).
Here is a video of the problem to make it more clear:
I've also tried to focus when it happens to make sure i'm not accidentally turning the scroll wheel back, but i can't notice it too. Either it's too sensitive or...i can't figure out what it is.
Also, it seems odd to me that when i use the scroll wheel to zoom in it actually zooms in LESS than if i use it to zoom out. I have to scroll forward twice to zoom in the same amount i would get by zooming out just once. I've tried messing with the settings but i cannot find an answer.