1. Why is listening on port 3389 important?
2. Do you still have your computer name listed twice, e.g. under computer name and then under username?
3. I may be wrong, but if you use the fact that it doesn't connect immediately that it rules out many things, it may hinder your troubleshooting.
4. It always seems like a simple thing. The fact that others can sit it and it can see others only shows that the computer can see other computers and vice versa. It would show that the computer you are trying to connect from can't access it. What happens when the two computers in question try to access it. It would seem as though it is only the computer not connecting.
5. I know this may sound condescending, but are you absolutely sure that the computer is Win 7 Pro?
