I posted this a few days ago and don't know if the post made it. Here is my

On my Mac (10.6.8) I was running 11.1 just fine. Then I upgraded to 11.2 and
things started "not happening".

For one thing the user interface became very sluggish. And then when I brought
the display out of full-screen, the window got stuck under the Mac's display
bar, hiding window control buttons from me. I could not move that smaller
window anywhere within the display monitor.

So I reverted back to 11.1 and the problems now remain. I have tried cleaning
up everything related to Stellarium on my machine and the problems just don't
go away.

Does anyone know what could be wrong and how to fix it.

Thanks in advance for any suggestions.