Move contact to category not working properly

Move contact to category not working properly

Hi,

I've just been moving a few contacts into categories and I've had to refresh my browser for each contact.

ie. move a contact works, then try another and it doesn't work - refresh browser and it works, try moving another without a refresh and it doesn't work etc.

Could you take a look :)

Anyone else have the same problem? I'm using FF3.6.3

Kind Regards

Jon