Hello Norton/Symantec Board reader? First I tell my specifics. I use an older Macintosh G4 with 640 MB of RAM. There I use Norton Antivirus [NAV] v10.1.2, with LiveUpdate [LU] v3.5 (Both are from 2005). In January 2012 even with downloads Above Zero, 4 times the number of Total Virus Definitions DID NOT BUDGE. (Want details?) If you do, here are the details: Date Amount LU Found [MB] Total # of Virus Definitions 15 Jan 75,939 16 Jan 51.1 75,939 [No Change from before, even-after 51.1 MB.] 18 Jan 56.6 75,946 19 Jan 1.5 75,946 [No Change] 20 Jan 2.7 75,946 [No Change] Lastly, 30 Jan 75,960 31 Jan [Today] 7.4 75,960 [No Change] Maybe you can answer this, please: “How can the Total # of Virus Definitions remain CONSTANT with downloads of 51.1 MB, 1.5 MB, 2.7 MB & 7.4 MB ?” Besides this, I feel that the Total # of Virus Definitions is Huge, at more-than 75,000, even-when PC viruses are included. There must be a-lot of Troublemakers in China, yes?