Well, just to add some counter to the debate, I'm using IE 6.0.2800.1106 on Windows XP (SP1 updated) with Zone Alarm Pro, NAV2003 and Mailwasher Pro, and the whole caboodle works just fine on a broadband connection. It's never crashed or locked up, the AV and firewall have caught all viruses and potential hacks so far, and it's bloody quick - except with Pprune, but that's not my kit's fault! The only feature from Opera that I'd dearly love on IE is the tabbed multiple pages in a single window; otherwise my experience of Opera is OK but not wonderful.