Where does one post basic questions about how to use the forum? I've poked around a bit but I cannot figure out a few things that would help me from a technical point of view.

Such as: How can I quickly and easily tell which posts I've already read and which ones I haven't? What I'm doing is whenever a subscribed thread turns up near the top of my list, I have to click on the last page of it, and then if that's very short I have to go back a page, and finally find my last posting and read on from there -- except often I had already read most of the rest of the postings and I'm still sort of lost.

What I'd really like is to have the page pop up with ONE post that I'd already read (for context) and then the rest of the (unread) postings. Is anything like that possible?