I haven't slid it open in a while, I usually just pop it up for vent. Today I had it in the half-slid-open position and when I went to close it, the little raised net that's in the very front tried to retract back down but it didn't move back enough to clear the base and it was basically forced downward and made a huge banging noise when it did clear the base (by force). Does that netting and its frame usually move back or just straight down when closing? Something is out of position. I don't know how long it's been like this...

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr