As more and more people start to post their bugs here (which is a bad idea), an other reminder for all of you:
Please do use https://github.com/OpenTTD/OpenTTD/issues if you think you have found a bug. This allows us to track a bug, and make sure it doesn't get forgotten. Also, we get IRC notifications as soon as someone adds a bug, so there is a faster feedback.
Use this forum freely to discuss problems, or what ever you think related. Just remember the points above. Bugs should go to https://github.com/OpenTTD/OpenTTD/issues
(in other words, read http://www.tt-forums.net/viewtopic.php?t=7253

Thank you,
OpenTTD Developers Team