... oops ...
I have to hold my hands up and say sorry to everyone. They're not both the same version. My office computer is running Word 2010 whereas my studio computer is running Word 2007. Given the dearth of answers even when I thought both versions were the same, I'm guessing the answer to this question will be 'no'; but, does anyone, by any chance, know of any way to transfer keyboard shortcuts from Word 2010 to Word 2007 ...?