I'm having the same problem. On hotmail, the inbox opens, but when I click on any emails there, the links are dead and the emails won't open. It happens almost every day, but only on a computer - any computer. It happens on my work PC and my home laptop. It happens on Firefox, Chrome, and IE. However, the hotmail works fine on my iPhone. The problem is not on my end, it's a problem with hotmail, so I'm about to cancel my account and migrate everything to gmail.