Norton: "Threat detected" hstouchdesigner.exe

I've had hstouchdesigner.exe on my new computer for at least 1 year. This morning, I got a warning from Norton that it was not safe and that the threat name was "WS.Reputation.1." http://us.norton.com/security_respon...051308-1854-99.

Very strange. I suppose I should ignore.
Elliott