Please help - Load variables problem

Okay - here\'s the deal:

I\'m trying to load some variables to a jsp-file from my Flash and I can\'t get it to work.
I works fine if i \"getURL\" but that\'s not what I want. I want to load the variables and use the response the jsp-file gives me and then use it in my Flash.

I\'m using the following command on a button which submit a \'form\' with 3 textfields.
All my variables and so forth have been checked again and again, so that\'s not where the problem is.

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loadVariablesNum (\"http://anotherdomain.dk/notmyjspfile.jsp?var1=\"+vara+\"&var2=\"+varb+\"&var3=\"+varc+\"\", 0, \"POST\");
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And now for the really strange part:

When I upload the the HTML and the SWF file to my server (of course I delete my temporary Internet files and then refresh) it doesn\'t work. Nothing gets shipped to the jsp-file and thus nothing gets submitted to the database.
BUT... - when I preview my Flash in the program (You know ctrl+Enter) it works..!?!?!?! Then I get the correct response...

AAaarrgghh.. - anybody who can tell me why?
Or have an idea?

Your help will be much appreciated!

Regards

Svar bare på dansk - kan godt læse det... ;-)