Yesterday, in the middle of the day as I was working - I checked my e-mail. When I opened a new message from a customer, the font was so small I could barely read it. I didn't change anything/update anything/or DO ANYTHING! It changed on it's own. I thought maybe it was just the 1 customers e-mail...but went back and opened e-mails I had previously opened, and the same thing happened there. It hasn't done it to every e-mail, just some. It's weird and annoying. I don't understand how it can just change all on it's own. Help! it's driving me crazy!!!