I have been using the same setup for at least 5 years and last week, after a Firefox update, my start up screen didn't automatically come up on my secondary monitor. Okay, I can deal with that, though it's a pain, I just dragged the screen up to the monitor. Today I tried to do that and it won't come up. I can see it but it's like it's behind the display and when I let go of the mouse it disappears. Help! I can't see very well and trying to see on my laptop is a real problem. Thanks anyone for help.