Hey Cratesmith,
In 4.3, two-finger dragging in viewport should rotate view, and two-finger + click dragging should pan. It should match what occurs with a mouse. There was a change in how trackpad responds within EventGraph for sub-editors, but that shouldn’t affect your viewport navigation.
What OSX version are you using? What are your system specs? Does this occur in every project, including a new project?
Running in Bootcamp may not be officially supported by us. I don’t know whether Windows reads gestures on a Mac trackpad through Bootcamp. I’ll double check with developers and let you know, but that may just not be something you can do.