For anyone who may be having the trouble as described by galileogalilei (dated January 10, 2005), here is what fixed the problem. I was informed that Backup Exec is not 100% compatible with Windows 2000 and that a new software package would be needed. I purchased a license of Backup MyPC by STOMPSOFT for $65. The software functions much like Backup Exec did but I no longer get the false error messages. The backups have been running smoothly for nearly 2 months. If you wish to get more information about the software, visit stompinc.com