Hemorrojd

I can't turn in the quest: Ledger from Tanaris. I looted an exceeded amount of Solid Crystal Leg Shaft's (24/20) from the spiders in Searing Gorge, and destroyed 4 of them. I still have 20 in my backpack, and quest tracker says 20/20, but I guess it messed up the quest completion or something, because the guy I'm supposed to turn it in to has a grey questionmark. I've tried relogging with items both in backback and in bank, but it doesnt' change anything. Best regards // Hemorrojd