Got it to run in a window. I read the previous posts. I had no menu but it was there. I just couldn't see it. Mashed a few buttons, figured I was at the char creation screen, typed random chars, and it loaded the game.
I have it patched to 1.09.
Now trying to figure out how to make it run in something bigger than 800x600 window. My native resolution on both monitors is 1680x1050.
If you can't get it to run by launching the Diablo.app, try going to the CDROM, run AUTORUN.EXE using your Diablo Bottle and then the CD menu will come up. Click on Play Diablo and go from there.
Progress...