Using script launches ScriptEditor

I have a simple script which is launched using the option and T keys. Often when it is launched, instead of running the script, the script file is opened in Script Editor. Any ideas?

Here is the script "New Task\oT

tell application “Microsoft Entourage”
set newItem to make new task
open newItem
end tell

Model: MacBook Pro 2.16
Browser: Safari 419.3
Operating System: Mac OS X (10.4)

When you saved the script in Script Editor, did you set the file type to “Application” instead of “Script”. If it is a script, double-clicking it or otherwise lauching it will make it open in Script Editor.

If it’s already an application, I can’t think of what else would cause that.

The directions I saw for scripts in Entourage directed me to save the file specifically as a script. When I saw your post I tried to save it as an application and it wouldn’t execute. Maybe I need to trigger it as an application from QuickSilver.