App Store tells me to try again later but I consistently get this error. I recently had my Apple ID corrupted. I thought it was fixed but could that be the problem? Any suggestions are much appreciated!
MacBook Pro, Mac OS X (10.7.2)
What solved it for me was the following
Sign in on apple.com(where you reset your password) there then go to the homepage and download the app store app(little blue button with shoppingcart) you will be redirected to the app.store and downloading will start, immediately
Goto your updates and say download all.
I repeatedly get "unknown error (4)" when try to download upgrades
