"An unknown error has occurred" when logging in to App Store
Hi.
I have a valid Apple ID and I have been running Mountain Lion from the day it was released. Starting today I can no longer log in to the App Store. I get "An unknown error has occurred".
I have done the usual bits: checking ermissions, trashing preferences and the cache file, but to no avail.
Any tips would be appreciated.
all best,
tench
Mac Pro, OS X Mountain Lion