Hi, I'm trying to update my apps in the Mac App Store, but when I click update the app store just keeps loading and nothing happens. This happens both in the updates section and in the purchased section. I've tried logging in and out of mac app store, re-installling it, etc... Frustrating when you pay for an app and then you can't even update it (in some cases doesn't work to download them either). Anyone know how to fix it? Thanks!