How can I make my mainstack stay invisible?

[Graham Samuel]

I've got a mainstack that the user is never supposed to see, and 
which should not be at the front. It's just an anchor for all my 
substacks. I find that if I make it invisible in the Stack Inspector, 
the 'Save' option in the IDE is dimmed. If I use the Application 
Browser to make the mainstack reappear, its visible property reverts 
to true, and so when I save the whole file I save the mainstack in 
the 'wrong' state. I also find that the mainstack shows up at the 
front, even though I have scripted a 'go' to my flash screen stack 
quite early on. This stack was previously opened invisibly, therefore 
according to my reading of the TD, the 'go' should bring it to the 
front. Does this work reliably?

I've tried using a PreOpenStack handler to hide the mainstack, but so 
far this hasn't worked either (I may of course have made some kind of 
scripting error). Maybe I should be setting the location of the stack 
offscreen at somewhere like -10000,-10000 - but that still leaves the 
problem of making sure that my flash screen gets the focus.

Am I just making a lot of coding mistakes, or is there a real problem here?

TIA

Graham
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          Graham Samuel / The Living Fossil Co. / UK & France