security problem while uploading to a server

[arun vallappan]

hi
I am trying to upload data to a server ... with Internet Explorer it works fine but firefox gives me an error .......
Error #2044: Unhandled SecurityErrorEvent:. text=Error #2049: Security sandbox violation
can anyone tell me what could be done
thanks in advance

[flexy]

The Flash Player security sandbox catches everyone out, so don't worry.

Do you have the debug player installed in Firefox and not IE? If you supress the error, does it still upload the data?

Do you have a crossdomain policy file on the server you're transacting with, and have you looked at the flash.system.Security class to see if there's anything applicable to you here?

[arun vallappan]

I dont think i have a crossdomain policy file on the server ...... can you please tell me what that is , why it is essential and how to create one .....
thanks in advance