Screen goes black when calling System Events?

Scripting Forums AppleScript | Mac OS X
#1 
tell application "Firefox"
	activate
	set the clipboard to "i"
	tell application "System Events"
		sleep 3
	end tell
end tell

This script turns off the screen, locks it, enters energy saver mode or something. Yes I know, it shouldn’t, but it does.

I have tried killing System Events from Activity Monitor, but it didn’t change anything.

Same result both when executed from Script Editor as well as command line/osascript.

Can I somehow restart the AS runtime environment?

#2

The System Events sleep command puts the computer to sleep. What do you expecct it to do?

#3

That’s exactly what the sleep command does.
Or am I missing something?

#4

Sorry, I was writing some Bash just before and used sleep there, of course it is delay in AS…

#5

For delay you don’t send it to system events as it is a built in AppleScript command. Remove the nested tell statements