PC cillin is scheduled to run at set intervals on my PC, it was already installed when I had it built, that, I don't mind. Today it started a scan of 48,000 odd files, [gasp?] & took 20 minutes, again I didn't mind, as, of course you can carry on, whilst it' running it's checks, but about half way through, a pop-up announced that I had the trojan dropper Delph 3.L, & said I should run AVG. I didn't, as I knew it was still on my drive, & AVG couldn't remove it to ihe vault.  Is there a link between the two anti-virus programmes, as it popped up whilst one was running.  Does anyone know anything about this particular worm, or more general, any dropper, what is the wide opinion on what they all do. Maurice. Sorry, I know it's Christmas......but nobody told the viruses etc!