It has come to our attention that some people are having problems viewing all of the pages of this website. They can log on OK, and view most pages OK, but when they go to view some pages, the page asks them to log in again. They do that, but the page keeps asking them to log in again and again.
The fix is to go into your browser and clear the web page cache. How to do this varies with the type of browser you’re using. What is happening is that on the pages where the log in request appears, the browser, rather than loading the page from the website, is instead serving the page from its cache of previously loaded pages. Clearing the cache forces it to load the page from the website, which seems to solve the problem.