Problem med att öppna bilagor i Outlook Enterprise vault

Repair the Outlook and if it doesn’t resolve the problem. Rename the frmcache.dat from the folder %userprofile%Localsettings%applicationdata%microsoft%forms and restart the omputer, your issue will be resolved.”

Reset Enterprise vault Offline Vault
http://www.symantec.com/business/support/index?page=content&id=TECH48534&key=50996&actp=LIST