Driver & Passenger Windows

[Chkysbak]

Ok, I admit this is petty but I wanted to ask anyway. The windows I have on the side of the MH are the slide horizontal type with a plastic locking mechanism to lock the window from moving forward. The screen and the window can be moved separately. My question is while I am traveling down the road this window vibrates any makes a noise. Granted it isn't loud, but it is close to my ears so its what I hear at the moment. Has anyone found a way to lower or eliminate the noise? I was thinking about using the soft side of a velcro strip and attached it to the locking mechanism to assist with the vibrating. The windows don't make that noise, or at least I can't hear it when they are open.

Any ideas?