So last night, I added a few songs to my iTunes Store Shopping Cart, then went to buy them, but every time I try to access the Shooping cart I get: "We could not complete your iTunes Store request. An unknown error occurred (5002). There was an error in the iTunes Store. Please try again later." The iTunes Store itself will load normally, just not the shopping cart. I have tried closing and reopening iTunes, restarting my computer, repairing permissions, and reinstalling iTunes, but I still get this error. Does anyone know what might be my problem here?