v3 Not Learning from Internet Explorer

Since I installed v3 this past weekend I have only run Firefox as a browser. Today I decided to use IE7. Both my Firewall and Defense+ security levels are set at Train with Safe Mode. IE is not generating any notifications, and I can’t go anywhere beyond the loopback with it. As a test, I tried Opera for the first time since installing v3 and it worked just fine - internet access is not blocked.

I also tried adding IE as a trusted app, and allowing all requests for IE in the network security policy.

Am I doing something wrong?