I am with this plan it sounds very good in all these iv'e seen anyways this should be taken into consideration
something most people haven't said yet.... it could also lead to a lot of new changes in the forums... such as a search feature where you can filter out solved problems. It could also be a button beside the thread name. Like the symbols we have now for "new post", "locked" things like that, there could be a little checkmark or something that stood for "solved". I'd use it, no doubt. -jason