Here’s an easy fix for you!
This issue has come a couple times from customers, and I’ve seen several threads in the forums about this. I’m hoping a blog post with the error in the title will help others find this easy solution if they run into this problem in the future.
The alert details pane does not display as expected. Rather, you see an Internet Explorer page with a message stating The page cannot be displayed.
In each case I’ve had dealing with this problem, the solution was to close the console and then delete temporary internet files in Internet Explorer. After launching the console again, the alert details pane should display information.