SB3.02 and Fly!II

Hi, I tried using Squawk Box V3.02 for Fly!II for the first time this morning and I can get connected without difficulty (to IVAO today). But when I come to send a flight plan, I get a message back from the server saying 'multicasting not allowed'. Then it tells me to file a flight plan and each time I try I get the same error message. Is there any configuration file I can change to prevent this error or is it a known problem with this VERY NEW version of Squawk Box. Thanks for a very workable solution, when its finished.Merry Christmas,Colin Begg,mailto:[email protected]