Please see www.starburst.burystedmundsprinting.com

In Firefox when you click on a tag in the cloud it starts to rotate (like it would when you hover over it), if you keep the mouse button held down it fully rotates, but doesn't allow you to follow the link.

It works fine in IE9, but not in Firefox. I have about 3 of these on different sites and they're all the same.

Any help is greatly appreciated.

Jamie