No web browser appears when clicking Activation buttons

A few users have reported that when they click one of the two Get Activation Code Using buttons in the Activation Dialog, no web browser launches.

Quit After Effects then Repair Permissions using the Disk Utility application.

Next, trash your key file.

Then relaunch After Effects and try activating again.

What about OS X 10.5?

Our plug-ins work great in OS 10.5. No problems.