I use AdBlock and NoScript as well but my AV is Microsoft Security Essentials. No issues so far when I visit dA or any other site. Is all the software installed on your PC including Flash, Java, and Windows or whatever OS you use up-to-date? Not sure if it helps, but I'm just saying as a precaution.
I'll admit I have not used my 2005 Dell notebook that much recently. I've been browsing the web on my smartphone most of the time because I've been lazy to use my computer. Last time I used the Dell notebook was sometime last month. I feel scared. What if there's a new way for malicious software to get in?
I'm having the EXACT SAME problem, and have been trying to research any possible answers on the net. I too have been using "close" to be safe. Unfortunately, this makes browsing impossible. I installed Adblock to see if it was the ads, but it keeps happening. Tried NoScript too, but didn't make a difference either. What's going on DA? I don't want ANOTHER virus from this site, so it's forcing me to consider other avenues which I REALLY don't want to do--I love DA! Please, if anyone else is having this same issue, post. Maybe we can get some answers?
Thanks. That sort of pokes holes in the "conflicting plugin" answer I got. Of course our experiences could have had different triggers. I want to narrow down the possibilities before I send my reply to the Help Desk, so I have one more question: Were you running Adblock when it happened?
The customer service representative said the warning was caused by NoScript, but you encountered the same problem before you started using that plugin. The only explanation I can come up with is that there was an infected ad on the site (I've heard this has happened before), and that triggered Webroot's warning. However, it's unlikely that would be the case if you had Adblock running.