Edit ->Preferences->Page Display
Change the option under Smooth Text Drop-down.
Generally re-launch is not required but you can surely try.
Hi there! is it working now? hope this helps: Could you have set the font to something small in your browser settings by mistake? If you are using Firefox, can you try selecting View → Zoom → Reset in the toolbar?
[Moderator's Note: Removing the web address]
Great answer. This works (as in setting Smooth Text under Preferences). Thanks. Not sure why one would ever not want smooth text, but never mind... thanks for helping out.