I wonder if you are not seeing some of this issue [url]Recurring Issue: Font Menu Crashing]. In my limited testing, most of the dropdown menus in Scrivener seem to be affected for some folks. I was only able to sort of duplicate it when I cranked up the speed and sensitivity of my mouse settings in Windows (no separate mouse driver settings). It seems to affect some folks with mouse/pointing device drivers outside of the basic controls within Windows itself. Not having one of those mice/pointing devices, I can’t tell for certain.