Hi Chris. Problems logging in and out usually stem from your browser’s handling of cookies. If you’re using Internet Explorer, try ‘Tools’, ‘Internet Options’, ‘Delete cookies’. Make sure you have all passwords and user names required for your other web sites before doing this. While you are in the Internet Options, try ‘Settings’ and tick ‘Every visit to the page’. To get a lot of free disk space back, try ‘Delete files’ too.
If it still doesn’t work, try ‘Internet Options’, ‘Security’ and move the slider to ‘Low’.