Old virus problem returns

[Finnian]

After 2 years of using Invision, now I'm getting NAV tripping on a file it says is infected with a "Trojan Dropper". The file is Stdio.dll, which, reading through the forum, i see caused some problems back in 2004. What would be the best fix for this?

[Riamus]

Turn off any worm/script detection in Norton (or replace Norton with a better scanner that has correct virus defintion files).