Going mad: missing the User CP dropdown

[SiD the Turtle]

Usually when I jump on the forums I press the little white down arrow next to User CP, go to my subscribed threads and see what's new. Now the arrow is gone. I can't see it in Firefox, but if I log in using IE its still there.

I was working when I was at work (on Firefox) a couple of hours ago. Am I going insane?

 

[SiD the Turtle]

Cache flush and a reboot did the trick. Very odd. Thanks guys.