Problem

The Queues section in Service Management is accessible but doesn't load any content. It appears empty as the image:

Diagnosis

Browsing the section with another Browser (or in Chrome Incognito mode or IE InPrivate mode) the page loads normally.

Cause

The cached content in the browser is broken.

Resolution

Clear the web browser cache.
Instructions for every browser at How do I clear my web browser's cache, cookies, and history?