I had a window override while viewing this Forum a few minutes ago, with an indication that there was an urgent update required for my browser. My firewall instantly identified it as a Trojan, and disabled it. My concern was that somehow this Forum's header(s) were the problem, and had been modified by a hacker. NOT THE CASE! But a word to the wise: if such a window takeover stating an update is required to your browser ... delete and ignore it! Better still, run a virus scan, in case your own anti-malware software is incapable of handling it automatically. Another point: make sure your firewall software is kept current. Hackers are continually creating new virii with which to infect any unprepared computer.