Problems with 2+2 forum software

[Lottery Larry]

I posted several replies in threads, including a long one, last night over the midnight switch. When I used the left navigation list to go back to another forum, then tried to reply to something else, I got a warning that "the form you are using is no longer valid"

And all of my replies were gone!

This morning, I connected to 2+2 and got the "Lottery Larry" page, as if I was logged in. I connected to Software through the left navigation list, and I wasn't logged in. So, I logged in again and used navigation to go back to Software.. and I wasn't logged in again!

Then I went through the Main Index link.... and I was able to get here and post this.

What's going on?