This is a reply to all those who have have had this problem or is going to have this problem in the future. I don't know if it will work for everyone. But it did work for me. And even if it doesn't work for you it shouldn't hurt to give it a try anyway.
Actually I got this problem solver from one of you. But I don't remember who it was. Whoever it was I want to thank them again.
All I had to do to solve this problem is to 'select all' text. And go to my font - and select it again. That solved my problem. I haven't had the problem since.