I have the exact same problem with the sociable dashboard settings page.
Here are some more details:
– icons will flash then disappear when the settings page first begins to load.
– if you have multiple tabs open in browser, sometimes if you navigate to another open tab and then back to the dashboard tab magically your icons are now there. strange.
– seems that only IE is affected. Works fine in Firefox.
– here is a screenshot of the issue: click here for image
Other Notes:
I believe all permissions are set accordingly across the site. Don’t believe that to be the issue.