After 2 months of trial and error, today I was able to use MSN Messenger with both audio & video in and out, from Miami(FL) to Madrid(Spain). Following is list of all adjustments/setups I performed in chronological order, the final adjustment probably the most critical, but who knows which of the other factors were also needed as a combination. I have tried one thing at a time, which I have kept in a tabular form log. I can’t provide detailed instructions for all adjustments, they are published in this and many other sources. My thanks to all that contributed to individual items. Here is the list:(1) use latest RTCDLL.DLL files (2)QoS off (3) e450.voice.microsoft.com site in IE 6.0 trusted sites (4) Intel network adapter latest drivers (5) Put MSN Messgr in trusted zone of Zone Alarm and switch off XP firewall (6) Use of MSN Msgr 6.1 instead of 6.2 (7) Disabling Westell 2200 router function by going to IP passthrough mode (8) Put Zone Alarm in MED setting for the internet, connecting and switching back to HIGH once connected. If anybody has trouble finding detailed instructions for any of the items I can try to do help as time permits. For reference, here are details of my configuration: Dell 4600, XP Pro, DSL connection using Westell 2200 modem/router, Intel Pro 100 network adapter, Zone Alarm (free) firewall. Good luck to those still having problems! Roberto.