Don't know whats going on,but when I pull up a post say in engine.I find the topic I'm after then I hit back to look at another on the same topic .And it say says page expired hit refresh or back.I hit back then I have to start all over. Never had this problem and don't know how to fix it. Any ideas?

Steve,
I just tried it and it worked ok. I am going to move this post to "bug hunt" thats where the computer "guru's" hang out, they might be able to help.