As some of you have noticed today our servers now have automatic bot/script detection with automatic captchas to deal with it. If you get a captcha this means that either you or your dual has something on their computer that is interacting with Travian (illegally) - we have done lots of testing with this function and there have been no false positives at all.
If you do get it, go carefully through all the browser plugins you use and other programs on your computer to ensure nothing will interfere with Travian at all - even common things like the Skype plugin may cause a problem if they add the skype button into Travian pages.
This update is designed to make the game fairer for all, so we hope you enjoy it,
Your Travian Team
Note: The timeout issue on sending multiple raids today was NOT related to the captcha system described above and was indeed a bug - it should now be fixed / will be fixed on your server shortly.