No route to host?

[Marie-Regine]

Hi,

I'm trying to VNC from my Mac to a friend's Windows PC (using TightVNC as a server on the Windows machine anc Chicken of the VNC on the Mac as a viewer). I've never used VNC before, so I'm guessing and googling a lot ;-)
I have her WAN IP address, and the port is forwarded in the routing table, but when I try to log in with VNC I get either "Could not connect to server" or "No route to host" errors.
Somewhere I read that I should be able to ping the host, so I tried pinging her WAN address but it didn't work. Is that right, or is the "host" her WAN address followed by a colon and the port? Anyway, when I add the port, ping says it can't resolve XXX.XXX.XXX.XXX:YYYYY.
I'm confused, I just don't really understand the docs I read :-( My dsl internet connection is ok, and so is hers. I've read somewhere that "route get" should give me some information, but I don't understand the output :-( Can anybody help me?

Marie-Regine