Issues with ADL crashing with mouselock

[amcoWork]

I'm using the latest version of the Flex SDK downloaded form the Adobe Gaming site.

I've added the SDK to my build list and the IDE is recommending the AIR 3.3 / Flash 11.3 exclusive commands just fine.

However, if I include the "stage.mouseLock" call in a project I get the following error during debug:

Main Thread (Suspended: ReferenceError: Error #1056: Cannot create property mouseLock on flash.display.Stage.)

I have the Air 3.3 runtime Beta installed as well and have confirmed the instance of the ADL is the one found in my latest SDK file

I'm on Mac using an up to date copy of Flexbuilder 4.6

Any help would be awesome.

[amcoWork]

UPDATE:

I added to following line to my compiler instructions and it seemed to fix the issue:

-locale en_US -swf-version=15