constant rattling of closed internal doors when the windows are open

[morejumpingfrogs]

I've fitted two new door handles this summer. Clearly I've done something wrong, because now the doors rattle ever so slightly all the time when shut if the room's window is open.

And it's driving me mad!

Anyone else had this problem and solved it?? If you have, please let me know how and put me out of my misery.

Work out where the door and the frame is touching and put a small piece of draft excluder just there.

There are other ways to fix but this is the easiest I think.

Thank you so much, I will do this today (and now I'm kicking myself for not thinking of that myself!)