The rear sunshade gets stuck in the opened position on my 330ci, everytime I open it. If I don't move it for about a month, it'll get stuck down too, and it takes 3 or 4 tries to get it opened. Then it gets stuck up. I've tried lubing it, but it didn't really do anything. It's not a huge deal, because I usually leave it up, but it would be nice to fix it, if it's easy. I tried searching, but didn't find anything.