This is happening on Windows now, too. Problem began for me randomly in 1.3.13. I hadn't noticed that 1.3.14 was released. So I updated to 1.3.15 to see if it was repaired. No dice. And I've downloaded the preferences.py fix that was linked above, still no changes. Is anyone else seeing this problem...

This seems to be happening on Windows for me. I've found threads about this problem in Mac and Linux, and even found the 1.3.15.1 app for Mac. Has anyone else run across this preferences bug on Windows?