Safari screen suddenly zooms in to huge size
I am using a wireless mouse on my intel iMac, and when I am using Safari, and no other program, when I am navigating, the screen will suddenly zoom in and get huge. I don't think I am doing anything repeatable when this happens. I cannot do anything to zoom back out. So, I need to go back a page and start over at the normal screen size. This is annoying, especially when I have just reached a page I need to see. Any ideas?