Also check the published documents by clicking on the link
http://seer.support.veritas.com/docs/NBUESVR_digest.htm
Here is one that I saw
GENERAL ERROR: Vault duplications / synthetic backups become queued, and never become active when using Veritas NetBackup (tm) 6.0 Maintenance Pack 2 (MP2).
http://seer.support.veritas.com/docs/283058.htm