Avast Ye!

If anyone is using Avast! as their virus checker, and you're finding it won't let you visit all sorts of legitimate websites, and is instead giving you MALWARE BLOCKED message, this may be the problem, although it was supposed to have been fixed last week. At the moment, Avast's servers appear to be overloaded and I can't get at the update that is supposed to correct the issue.

Update: visit the avast blog and you can see that I'm not the only one reporting that the problem is back.