I need a solution
since upgrading to the latest PUP (3.3.2 MP2 (Build 15413) our clients are plagued by this error screen when signing in. It appears randomly. I cannot cause it to happen for trouble shooting. Users will sign in and have access to their Inboxes in the AM but not in the PM, or maybe so, it is random.
Symmantec needs to generate a hotfix NOW, this is very disruptive.