I have a problem with Power Point. How do I permanently set Australian or British spelling.
I can change it temporarily but whenever I turn the computer back on it comes up with American
Spelling.
Any answers please?

Is the entire computer set up to understand the Queens English, not just PPt? Do a search inside MSDN knowledge base. Have you used spell check and then added your Australian words to the database?

Is PPt trying to auto complete your spelling for you? What is your OS and version of Office.