I have had the car for a year now and just love it. I have had a few minor issues that have all been resolved. In any case, I just opened the sun roof for the first time a week or so ago just to see if it was working properly. All seems to be OK there. Also, I rarely drive with both the front windows open. So...when I did so last week I noticed that the sun screen just vibrates quite a lot. It is worse if the passenger window is only partially opened but I do not notice it at all if just the driver's window is open. The question I have is can this fabric sun screen be adjusted to make it somewhat tighter and, if so, how is it done? Or...should I just take it back to the dealer and ask them to make the adjustment the next time the car is in for and oil change and/or tire rotation. As always, any assistance you can provide will be appreciated. Thanks!