Squeeky driver's door window glass

[noetus]

I've noticed a slight squeek/rub from the driver's door glass, it's almost as if it's rattling slightly along the top edge where the glass inserts into the door surroung when going over bumps, even slight ones.

If I wind the window down a bit the noise disappears.

Any sort of a quick and easy fix for this?

[mikeybutch]

I use some spray silicone lubricant in the channels