NAV 2011 crashed during a full reputation scan. There are no details in NAV's history, but Windows has some info (see below). If NAV automatically creates crash dumps/logs I'd be happy to send them in if the Norton boffins need them and can tell me where to find them on my system.
Source
Symantec Service Framework
Summary
Stopped working
Date
01/09/2010 20:49
Status
Report sent
Description
Faulting Application Path: C:\Program Files (x86)\Norton AntiVirus\Engine\18.1.0.37\ccSvcHst.exe
Problem signature
Problem Event Name: APPCRASH
Application Name: ccSvcHst.exe
Application Version: 10.0.1.8
Application Timestamp: 4c48fec7
Fault Module Name: ntdll.dll
Fault Module Version: 6.1.7600.16559
Fault Module Timestamp: 4ba9b29c
Exception Code: c0000005
Exception Offset: 00038c19
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 2057
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
Extra information about the problem
Bucket ID: 1989031901