I have a question involving avast's ability to detect viruses. I have avast Pro and just a couple of days back, another computer forum I was visiting was hit by a virus. As soon as I opened their website, I got a warning from Spy Sweeper in a pop up box by the system try that "Spy Communication Shield has blocked access to: zdfttygzjm.biz" Why didn't avast Pro pick up on this? Seems someone is falling down on the job.