Thanks for your reply. Yes I have tried both Chrome and Firefox without success, and also contacted the site but no-one else has reported the problem. It was a normal Windows 7 update on shutting down which seemed to create a number of problems but I don't seem to have trouble accessing any other websites, so am at a bit of a loss. Have tried to contact Microsoft Support but have been unable to successfully submit the problem.
Amazon Fire HD 8 review: A brilliant combination of function and value – with one massive caveat