Library screen

[willing]

I've lost the close and minize buttons at top left of screen.  How can I find them?

[Michael J. Hoffman · Accepted solution]

Perhaps you changed screen modes by pressing the F key. Try cycling through by pressing F again a couple of times. 

Cycle screen modes	F	F
Previous screen mode		Shift + F
Switch between Normal and full-screen, hide panels	Ctrl + Shift + F	Command + Shift + F
Go to Normal screen mode	Ctrl + Alt + F	Command + Option + F