Connecting to twitter through jetpack

I’m having problems connecting to my twitter account, which I only created last night. Basically, I have not got a ‘add new’ button beside it, just a ‘connect’ button. I’ve followed all the steps in connect-twitter, and even used a browser which hasn’t connected to my site before [opera] and its exactly the same there. FYI this is with wordpress 3.8.1 and jetpack 2.8 on a multi-site setup.