Hi. Has anybody had this problem and how can I solve it? When driving with the roof down the sun visors are lifted as wind deflectors but over aporox 40 mph the wind catches them and they flick down or just start flapping about. When we first got the car a couple of years ago the visors were stiffer and now they seem to be getting more and more loose. I can only think this is going to get worse unless I can find a solution. Can anyone out there suggest anything? Kind regards.