When looking at a dossier while using internet explorer the tabs other than summary will just get stuck at loading, works fine in chrome.
I decided to test it to see if I got same result as Malik - I did.
The circular loading symbol spins in Internet Explorer 9 and nothing but the summary page loads.
Same thing happening for me if I used IE too.
Not that I know why anyone would be using IE admittedly. :P
Because IE works just fine so there's no reason to change browser
After downloading a 13GB virtual machine image just to run IE, I think I've fixed it.