Actionscript 3 :: ExternalInterface / NavigateToUrl Popups Blocked When Called From SetTimeout?

The Symptoms: pop ups intermittently blocked/let through from external interface and navigateToURL combinations.The Problem: Flash (or the browser..not sure) wont let pop ups be triggered outside of a time range and/or an event duration.The Environment: I have an app that needs to send data via zendAMF, do some processing and be sent back to the flash player. On the response, if certain conditions are met true - then trigger a pop open window. The same code that gets blocked on response, works directly from a mouse event trigger.So i set up a basic situation: 6 buttons, calling 3 methods. 3 buttons would call the method directly (all open the window perfectly) the other three would get the value of a numeric stepper, and use setTimeout(openWinMethod, NumericStepper.value) to simulate a delayed call from the zendAMF response.

UPDATE : if i select the 'navigateToURL, no delay' button first, close that window, then try any of the other delay calls - they work. its like the browser accepts that you have clicked to open a window at some point and therefore are allowed to call from a delay then on. (firefox only)All three using the delay would be blocked (firefox and chrome) whereas all three directly would open.afari - as well documented, would only work on the 2 methods using navigateToURLf interest: the js function in the html wrapper would be called be external interface to open a window. Without a delay this worked. With a delay, the js function would be called (as verified by some alert statements) but a new window was never spawned./popup/

here is my as3 class:
package
{

[code].....