Fix the serial port in use issue for Java/Arduino on OS X Lion.

ArduinoLionFix.scpt

--- Fix the Arduino Serial Port in use Issue on OS X Lion
--- copyleft jens alexander ewald, ififelse.net 
--- based on a google search with the keywords:
--- "osx lion arduino port already in use"
--- Credit also to this bolg entry: http://marcosc.com/2011/10/arduino-java-error-serial-port-already-in-use/

--- Download a compiled version here: http://ififelse.net/get/ArduinoLionFix.zip

try
	
	display dialog "Would you like to fix the Lion issue for Arduino (Admin priviliges needed!)?" buttons ¬
		{"Yes, please!", "Nope, i'm fine."} with icon stop default button 1 giving up after 30
	set DlogResult to result
	
	if button returned of result = "Yes, please!" then
		do shell script "sudo mkdir -p /var/lock && sudo chmod 0777 /var/lock" with administrator privileges
		display dialog "Fix successfully applied." buttons {"Thanks"} with icon note
	else
		display dialog "Fix was not applied. Try again, if you need to." buttons {"OK"} with icon caution
	end if
	
on error errorMsg number errorNum
	display alert "Could not fix it!" message "Try: sudo \"mkdir /var/lock && sudo chomd 0777 /var/lock\" in the Terminal. " & errorMsg buttons "Cancel" default button 1
end try

This isn't working for me. It runs as described but the "port in use" error is unchanged.