error "itunes was unable to complete your request. you do not have permission to access the requested resource"

Every time I try to access anything in the itunes store from my pc i get the following error "We could not complete your iTunes Store request. You do not have permission to access the requested resource. There was an error in the itunes store. lease try again later."

I have accessed the store just fine on my iphone and ipad.

I have restarted itunes, restarted the computer. reinstalled itunes.

Any ideas?