Hi James, well the MoI viewport trackpad handling is done through C++ code responding to Qt events, it's not handled by any script processing. The node editor is running through script and webkit events and yeah there have been quite a few changes in the newer webkit version that MoI v4 is now using.

I do have a macbook here with a trackpad so I can test it over here. I know you've reported it previously but can you please describe the problem again? And do you mean that it used to work ok in MoI v3?

- Michael