'05 S80. Just notice that the front windows have a little "quirk" that ha same baffled. They roll up normally, but, after I remove my finger from the button, drop down about 1/8 of an inch. Both fronts do this - not either rear. There is no visible opening, no discernible wind noise. nor any rattling. I just can't imagine a reason for this but plan on checking out my S70 when I get home. Any ideas?

Don