Try Pressing the "prt scr" button instead of F12.
It's usually near scroll lock.
If it's the top of a double button, hold shift and press it.
Otherwise, check your global script and make sure that the screenshot button actually is F12.
It's usually near scroll lock.
If it's the top of a double button, hold shift and press it.
Otherwise, check your global script and make sure that the screenshot button actually is F12.