Hi Damien,
I'm not sure what's happened to my Bridge / ACR but the colour has changed from the grey I had for the bridge class to black and when I go to set the WB I only get the three options, all my colour profiles have disappeared, when I double click an image in bridge to open in ACR it skips it and opens it straight in photoshop.
Screenshot below to show my wb options.
Very strange. I'm hoping you can help.