‘We can’t connect to Outlook at the moment. Please try again later. ‘

Without fail, every morning when I open hotmail I get this message and I can't open my emails.  It's driving me nuts.  As per previous advice I have tried  'clearing browser's cache and temporary internet files to make sure that they are not causing the issue.'  It makes no difference. What else can I do?  I have Vista/Silverlight/ latest Explorer.