In Word, I sometimes want to change from US spelling and grammar to the UK versions. I've gone to Tools>Spelling & Grammar > Dictionaries. A dialog box then comes up titled Custom Dictionaries. Underneath this I've chosen English (UK). But the file I want to check always stays in US English for spell checking. I've tried closing and reopening the document with no luck. I also restarted my Mac. I even changed the input Language to British. But the spell checker remains stuck in US English. Any suggestions, please?