Every time that I log in to the message board, it saya that my last visit was on October 11th. I have been signing on almost every day since then, but it does not change. Also, when I click on "new posts", it lists everything since that date not since the last time I signed on. What do I need to do to change this?

There's nothing you need to, or actually can do--the board was upgraded on the 12th, and a lot of us have been experiencing the same thing.

I'm sure that everything will get back to normal soon