Like it says - I don't get title bars on MOI windows running on Mac OS Sierra 10.12.1.

I reinstalled MOI, and that solved the issue for a day or two, but now the Title Bars vanished again, and I can no longer minimize the windows.

Is there a hidden setting I've missed, or is this a bug with Mac OS?

Hi Rick, it's due to changes that Apple made in how multi-monitor works, the toolkit that Moi V3 uses to run is still not compatible with those changes.

You can solve this though by changing an operating system setting as described here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=8101.6

MoI v4 will solve this and won't need the setting change anymore.

- Michael