UBB.threads PHP Forum Software Community Forums UBB.threads Version 7/8 Support Trend Micro "PC-cillin Internet Security" labels UBB forum "threat"

it seems to mean that Trend Micro has labeled your site as dangerous. Might want to drop a dime and ask them why.

I'd first try removing the scrolling ticker and the gabber island just to see if something in them was tripping it.

I'm not a trend micro user, never have used it, so it's hard to give an answer based on a program I've never used.