POST variable error

Hi

Ive been tinkering with some games which post the user’s score to a php file, which writes the data to a database… but Ive discovered that in some browsers I get this error. I googled some URLencoding tools for AS3 (came up with URIencode which seems to be connected to javascript somehow?!), but Im actually just stumbling in the dark and need some direction… any advice would be appreciated!

Thanks

Error: Error #2101: The String passed to URLVariables.decode() must be a URL-encoded query string containing name/value pairs.
at Error$/throwError()
at flash.net::URLVariables/decode()
at flash.net::URLVariables()
at flash.net::URLLoader/onComplete()