Hi Don, this is kind of a general problem on Mac that there isn't an ironclad way to differentiate a trackpad scroll from a mouse wheel scroll, they both send the same type of scroll message. It makes it difficult to make them do different things.


MoI v5 tries to differentiate them by looking a property on the event called "hasPreciseScrollingDeltas" and if that is present it decides that it's a trackpad or magic mouse (trackpad-like mouse thing) and not a mouse scroll wheel.

When your mouse switches to panning behavior I guess it must be reporting hasPreciseScrollingDeltas at that time.


Do you see any difference in behavior if you set UseTrackpadScrollAsMouseWheel=y in moi.ini ? Go to Options > General > "Edit .ini file" button to edit moi.ini . If you set that then the mouse should stay consistent in behavior I think.


I have heard from someone before that they had some behavior like this that was tied to a particular mouse. Do you have any other brand mouse around that you could try with instead of that one?


You may not be able to use both the trackpad and the mouse at the same time with that particular mouse.

- Michael