Security sandbox error

i have this problem…thanks for help so far guys…where I can’t get an external swf to play a frame in my main movie…it should be straightforward…i.e. _rootgotoAndPlay(xx) etc…

It doesn’t work…usually it just does nothing…

I retried this morning and got the error message…

could it be that my loaded swf can’t talk to my main movie because it trying to access it from a different domain?

Any ideas? If this is right how do I get around it ?

I’ve tried to open the external file in my pc …but mx2004 won’t see it…it says
"can’t open url c:/ocume%20/ebsit%20…etc…

thanks in advance

jason