I just tried to create a new thread in our tribe forum and got this error: This is not helpful, because I don't know what characters are "invalid". I had to search for over 5 minutes to find out, that numbers are not allowed in the title of a thread. I tried to write coordinates in the title and now searched the content of my new thread for invalid characters. Improvement: Tell me (in this message) what these invalid character are or where I can find it. Also I don't understand why numbers are invalid as title (especially as coordinates "xxx|yyy").