Whenever i post a new message, it takes me to a "Page Cannot Be Displayed" page. then i click "refresh", and it says the link is invalid..... why is it doing this?

Are you using a school computer when it does this?? It does the same thing to me when I'm at school but it doesn't happen to me when I'm using my home computer.

nope im on my home computer:)

This is because it would normally take you to the confirmationy type page. If it doesn't work, and you press refresh, it doesn't know what message you entered. So you have to go back and post again (at least in my experience you do)