This has happened me two times (both in the new forums): I am logged in. I start writing a post. After writing I try to submit my post. I am asked to log in again. After that I get an error message saying something like "The forum you specified doesn´t exist" (I´m afraid I don´t remember the message very well). The second time this happened I was prepared; I had copied my post to my clipboard before submitting it, so after the error message I tried again, pasted my original message in the text field and whaddaya know: i got through. Could this be some kind of time out? My posts can take quite a while to write, since I am not a native english speaker and I like to be thorough, especially when I´m asking something.