When I start Office 365 the usual page appears allowing me to select Word, Excel etc.

When I select Word I again get the usual page showing me the New Document Box and a list of the Recently Accessed Documents.

However, clicking on the New Document Box or on any of the recently accessed documents produces no result.

The only way I have found to use Office is to find (say) a docx file, open it, delete all the content of the file, insert the new content and then uses Save As with the new name.

Any ideas?