What browser and version?
Do you have the Flash plugin? Can you view Youtube videos?
What kind of internet connection are you on?
1. Delete your cookies.
2. Clear your browser cache.
3. Update Flash
4. Use the Firefox browser...
http://www.mozilla.org/firefox. Whether or not you like it at first...it's superior to IE.
5. Be patient and wait for your submitted message to appear before posting another one. The browser is communicating with the server in the background, and has a low number of maximum simultaneous connections. If you step on the one in progress it may cause problems.
The majority of the people using the chatroom are doing so without such difficulty. I have never experienced a "lost" message so it's difficult for me to diagnose. Information like running a "
traceroute" command to backcountrypilot.org from your machine and pasting the result is helpful.