Failure to if a Popup window is available

Mark

I'm using a demo version of Sahi Pro v5.1.2, and having great difficulty establishing whether or not a Popup window exists.
If the popup has not been created (because my application workflow failed) there seems to be no Sahi way of checking of checking to see if a window that was supposed to have opened is actually open. Please help. This is a major block to regression testing for my application.

Background:
1. Main window "A" opens a Popup "B".
2. Depending on user choices in Window "A" workflow, Popup "B" can redirect to a new window Popup "C".
I need to test if Popup "C" has been instantiated.

These all fail with the following Error message:

Window/Domain not found: popupNameFromStep=SF-42400000003 for FOA00000001; derivedName=; windowName=; windowTitle=Sahi Start; wasOpened=0; domain=
--Stopped Playback: FAILURE--

And in the log:

_debug(_popup("SF-42400000003 for FOA00000001").exists())
Window/Domain not found: popupNameFromStep=SF-42400000003 for FOA00000001; derivedName=; windowName=; windowTitle=Sahi Start; wasOpened=0; domain= at Jul 27, 2014 11:11:43 AM

Here are the ways I've attempted to check to see if a particular Popup window is available:

var $popupname = "SF-42400000003 for FOA00000001";
_debug($popupname);

var $exists = _popup($popupname).exists();
_debug($exists)

var $exists = _exists(_popup($popupname));
_debug($exists)

var $exists = _condition(_popup($popupname).exists());
_debug($exists)

var $exists = _condition(_exists(_popup($popupname)));
_debug($exists)

var $exists = _popup($popupname).isVisible();
_debug($exists)

var $exists = _isVisible(_popup($popupname));
_debug($exists)

var $exists = _condition(_popup($popupname).isVisible());
_debug($exists)

var $exists = _condition(_isVisible(_popup($popupname)));
_debug($exists)

Also, I've tried all the asserts.
I tried:
onScriptFailure($exception)
onScriptError($exception)

To try and workaround the failure to check if a Popup exists. No success!

Any help = much appreciated!

I will gladly setup a WebEx meeting to demo the error/trouble-shoot if that would help (you will have to establish that you are either a moderator on this group, or a Sahi employee).

-Mark.