I have been having the same problems with MSN 6.2. I get video but no audio. The weird thing is that it works fine with one of my contacts but not two others. I have Norton Internet security and the other persons have the Windows firewall. We tried turning them all off but still no audio. I have tried opening specific ports 1900, 6901, 6891 and still no success. the person I successfully connect with also has NOrton Internet Security and they are both turned on. In all cases the program MSN Messenger 6.2 is “allowed” in the firewalls.

Any new ideas?

Thanks,
pat