We're running ARCServe 2000 on an NT 4.0 sp6a box. Our exchange brick-level backup is running so slowly (less than 2 MB/min) and we keep getting error E8602. I loaded the SP3 for ARCServe 2000 and Qo06202 which is supposed to fix the brick level issues. We are also running NAV 2.1 for exchange on the exchange server. The service for ARCServe on exchange is set to log on as the system account and interact with desktop. I also tried stopping the NAV service and then starting a backup but the throughput didn't change. The service on exchange for ARCServe keeps stopping as well. When this happens, then the backup fails all together. Help from anyone would be greatly appreciated.