Across 2 computers - both new W7 builds, I've been seeing some occcasional issues since installing Prevx with Safeonline. Old builds were Nod32 v2.7 with Prevx regular. Occasionally... every few days I see an issue where Firefox is unable to load any website. (Google, Ebay etc). Disabling Safeonline, then closing & opening Firefox allows connection. When this happens, the other computer is fine, so it's not a network/ISP issue.