+ 0 Votes First. Verify. CaptBilly1Eye 7 years ago Before you spend a lot of time and concern...It may very well be a 'false positive' identification. That is, Symantec may be wrong and it is really not a virus.It's best to get a second or even third opinion.Here is a free on-line scan offered by BitDefender: http://tinyurl.com/aauh5 .And another by TrendMicro: http://tinyurl.com/2xis .I have found both to more reliable than Norton.Actually for every day virus protection, I prefer AVG. You can get AVG free here:http://tinyurl.com/fky54Beyond that, if there really is a virus involved, it may be embedded in a particular graphic(s) used in the slideshow and therefore only those shows containing those graphics would throw a flag.