It just an idea but it would be great if you could see what topics you have open that are NOT marked resolved.
Maybe star them or have another text colour to make them stand out on the forum activity list. If you have a few running threads it can be confusing as to where you are and it will be easier to find them to mark them resolved if needed.
I know that you are keen to get matters resolved fully and as quickly as possible and this will aid the user to keep track of forum support questions and topics.
Food for thought there maybe?