El Captain - Horizontal White Line At Boot
I have a Macbook Pro running 10.11.6 and yesterday pulled down some MS updates. Since that time, when booting there is a horizontal white line that takes an honest five minutes to slowly move from left to right. I am finally presented with a login prompt.
Any idea why this is happening and is there a fix?
Thank you!
Mac Pro, OS X El Capitan (10.11.6)