user unable to open a link

Hi,

One of our user is facing the problem.When he is trying to open a link(i.e in detailed navigation) the link is not opening and only show loading status.The link is a folder which contains other pages and iviews pointing to certain systems.he has already cleared the cache and explorer settings are allright.and for me the link is opening properly.Also I assigned the same role to a test user there also the link is opening properly?Had any one experience the same problem earlier?Why he is not able to open the links while I am and the test user is able to open?

Points guaranteed!