Greetings from Manchester, UK. I am currently running the 30-day trial edition of NOD32. I have a few questions that experienced users may be able to answer: 1. Is NOD32, which is described as a AV program, as good at dealing with malware as it is with viruses? If I buy a licence for NOD32 should I ditch my beloved Spyware Doctor? Would NOD32 render the latter superfluous? 2. What do the following terms mean (they occur during scanning): - "Error occurred while scanning active boot sector of the 1. physical disk"; - "Error opening [File locked] " Etc., etc. Are these messages normal? 3. Running a scan in Safe Mode appears to disable certain NOD32 features - anti-stealth initialization, access to the Control Centre. Is this normal? I apologise if these questions appear very basic, but I've only ever been used to using a very basic AV program (AVG). Thanks. Terry.