It works for me with the 4.0.4.4 SR "hotfix" release on OS X 10.11 ("el capitan"). It doesn't work with the latest 4.2.1 release. Unfortunately, the UI is very sluggish with 4.0.4.4. It felt a lot less sluggish with 4.2.1 but a demo scope isn't much use. ;) Hopefully a future 4.2.x release will turn...