We recently upgraded from ArcServe 6.61 for NT to ArcServe 2000 on a Win2K Server. Our previous backups on 6.61 were encrypted and we never had a problem restoring. Now when we try to restore these tapes using ArcServe 2000 and we give it the proper session password, we get this error. ArcServe Tech Support is stumped. Any help would be greatly appreciated.