Anybody use Windows Messanger

Windows msgr is very sensitive to firewalls, apparently. Try (just for a sec) disabling the firewall, ask the other party to do the same, and see if it helps. If it does, then you can try creating rules for it.

On my machine I have the Windows Messanger in my firewalls Exceptions list, and so did the other user. Also they had their firewall shut down at the time we were trying this. If that was the problem wouldn't Windows Messanger give you some sort of message. The program seemed to be working correctly up until the point where the sharing toolbar/window should have appeared, but nothing happened. So even though sharing was requested and accepted, there was no way to select which program to share, and with the whiteboard it should already know which program but it still did nothing. No messages, no windows, no toolbars, nothing but the chat message that says the request was accepted.

Not a router but a 4port switch, from NetGear. It is where I have the Internet modem connected for my DSL connection and then several other computers. If it can't handle a router it seems pretty useless, since only the chat part seems to work.