Have anyone else notice any problems with new windows messenger 5.0 working with ser? Instant messages are working nicely with windows messenger 4.7, but with Windows messenger 5.0 voice and video calls are working, but messages cannot be sent. In capture I'm receiving "481 Call Leg/Transaction Does Not Exist". In SDP it is also saying: invalid line: "message text". I have tried with ser 0.8.10 and 0.8.11pre29.