Here is the reason: http://newedenstation.com/announcements.php?aid=4
And here's what I care about: We've changed from MyBB to phpBB.
Things you should do:
- Fix your avatar. Gravatar avatars are unaffected - I recommend using Gravatar instead of phpBB's default Avatar system. With Gravatar, you can upload an avatar of any size and it will auto-resize it. phpBB will just throw an error.
- Set your notification options in your User Control Panel (the little person icon in the top-right)
- Go over your profile and see if anything needs to be changed.