Flash cs4 mac - Error opening URL '/:Users:someting.swf' - Not a "loading external content" problem

Question

Hello.
I am having a weird problem when trying to test a movie or publish preview -> flash on mac with Leopard os.
The result is a blank movie with the usuall "movie not loaded" if u right click on it and the output returns the "Error opening URL 'the path of the swf here'.
This has nothing to do with loading external files or something like that. It happens even in blank movies and it gives the same error if I try to open a swf from flash ide.
I can publish the project or export the movie with no problem at all.
I can preview the movie in html. I can run all the swf files in my hard disk, network, usb stick, dvd etc., but when I try to open any of these files from flash ide I got that stupid error.
Its not something that stops me from working in flash ide but its slow to export movie any time I want to test it.
Things that I've tried so far but nothing worked:
Update the flash cs4 to the latest version
Update the flash players
Restored the release flash player as default player (I am using as default the debug player)
Cleared the preferences
Move the flash cs4 folder to another location in hd
Saved the fla document first before testing the movie (in different places with or without spaces in document name or folder)
Give read & write permissions for everyone for flash.app, players and for fla files when saved first before test movie
Unistall and install the application 3-4 times.
Test every as version just in case.
Also I've checked the folders when testing movie and I can see that it creates an swf file, which I can run it outside flash ide (the one that the flash ide player cannot load) with no problem.
The mac os has the default set up as it came. Nothing chnaged in permissions or security settings.
Thanx in advance.

Answer 1

In this particular example I am using this code to start the
xml file load:
// now load the XML file that contains the content strings
var sXMLFile:String = "xml/home.xml";
var xmlContent:XML = new XML();
xmlContent.ignoreWhite = true;
xmlContent.onLoad = onXMLLoadComplete;
xmlContent.load( sXMLFile );
But I don’t think the code is the problem here . This
happens on every file I load when I am using a relative path to the
content, regardless of how I load the content (XML object,
loadMovie, MovieClipLoader, etc…) and the same code executes
perfectly on every other machine in the office(Mac and PC).
I’m more concerned with the semi-colons and .swf filename
that Flash is putting into my relative path on the error message.
Is that normal?