Email inbox showing all "senders" in bold, even if I have already read email
I live with a pretty full inbox, and all the previously-read emails are in a non-bold font, whereas new unread emails are in bold. Starting today, all of my previously-read emails are showing up with bold font for the name of the sender (but non-bold for the subject line). Unread emails are still in all bold (both the sender and the subject line). Seeing bold for both read and unread emails is driving me nuts and giving me a headache. Can anyone shed any light on why this happened today and how to make it go back to normal? Thanks!