IE7 Internal pages won't load

Hi,
Tried to search everywhere on the net for an answer to no avail. I’m hoping to get help here.
As you can see from the title I’m having very strange problem.
Website tested with all other browsers it loads fine except IE7.

IE7 is loading home page but if you click any other link on the page nothing happens, if you hit F5 it puts correct URL to the address bar then page becomes blank. Source code is fully loaded but no graphic elements are visible. If you hover over the blank page you can see that even all links are loaded and clickible but still invisible. And this is only with IE7.

web url: https://www.passagetoindia.ie

Any help would be highly appreciated. Thank you.