My AOL fonts have gone italic

A couple of days ago, without any changes on my part, the font on my mail inbox, browser window, many websites, etc. went from plain old Arial to Arial italics. AOL Tech Support has so far advised me to: 1. Do a Quick Restore; 2. uninstall and reinstall AOL; and 3. in Personalization Window Color and Appearance,go into “Advanced” and click on the Italics button that appears on some of the “Items” in the drop-down menu (which only italicised everything as I had the Italics Off on every item in the menu). I even upgraded to AOL 9.5 but no luck. How did this happen and how can I fix it?? Thanks much for any help. PS: This doesn’t happen when I use Firefox so it’s def. an AOL problem.