I recently installed NAV 2010 on my PC. I tried to run a manual full system virus scan and after about 4 hours it had only scanned about 7,000 items. I know from previous scans, the total # of items typically scanned is about 320,000. I had previously had Norton Systemworks 2006 on this PC. In the past, a typical full system scan for Norton Sysytemworks would be about 4 hours for the full 320,000 items. My operating system is Windows XP. Can anyone help me with this? Thanks.