I had SPSS 22. I had to install SPSS 23 since the license expired on 22.
Here's what I did:
I installed 23. Then I deleted (AppCleaner) 22. Then I restarted the computer. SPSS would start (and say SPSS Statistics in the bar at the top) but no windows would open - no data window and no output window.
So I deleted everything and re-installed 23, and still - it will start but with no windows.
Help! I need to use SPSS on Monday for work and need to have it working by then!