OK! How Do I Fix This?

OK! How Do I Fix This? When I go to read a thread, the post that started the thread is on the bottom and all other post are above it. In other words the latest post is on top and not on the bottom where it normally is.
USER CP->Edit Options
User CP, edit options, thread display mode: linear, oldest first. Anthony, there are multiple threads on this (like every time someone new signs up). Can you make it the default? There has to be a setting somewhere on your end for this. Also, turn on the BB code so that people can make URLs clickable.