Automaticly topics mark as read

I think its requested before. I think it would me much comfortable if system will automaticly mark topics as read after user reads it. This system rocks(!!) but only thing what i dont like is that users needs to click topics as read everytime when they post or when someone other posts.

I lookd modifications and got one(dont remember the name but i markd topic read after user browsed it and when he didnt reply.), anone have something better?

Sorry, my english is not so good because im from Finland. Greetings.