Custom away message for yahoo gateway

Hi,

When I set an away message on spark with a user that has yahoo, I do not get my custom away message.

When

I set it with somebody who has both an aim username/pass and yahoo

username/pass, his aim buddies get to see the correct away message, but

his yahoo buddies are stuck with “Be Right Back” no matter what away

message I set. Is there a reason for that? Does this problem fall in

OpenYMSG or the IM Gateway?

Thanks