Wow. If ever there was confirmation that I’d done the right thing, switching from Internet Explorer to Mozilla Firefox, this would be it: a CERT Vulnerability Note about IE, which actually lists as a security fix, using a different browser!
For those who may not know, CERT is the Computer Emergency Readiness Team, which issues security alerts about the most pressing computer security issues. For them to have released this about IE is a major indication that Microsoft needs to address these browser security issues post-haste.