NAV Corp 7.6 Virus Def 11/29 shown as 1/12/1999

What is going on with my definition dates? I noticed that the dates for both defintions from 11/26 and 11/29 are incorrectly shown as January 1999. Did someone mistype the date to be shown for the updates? Or, is there something I have to do to get the date to show correctly?