I posted this solution that worked for me in another thread. Seems to have worked for several others as well. Steveshank may have been referring to it in his response:
- From your Windows desktop (NOT from within Scrivener) right-click on your Scrivener icon.
- Choose “Properties” from the pop-up menu.
- Choose the “Compatability” tab.
- Under “Settings,” check the box labeled, “Disable display scaling on high DPI settings”
- Click “OK”
You can now reopen Scrivener. Your fonts should display normally.
Hope this helps.