Problem viewing characters on vocabulary page

Can anyone help me get IE8 or Google Chrome to display chinese characters on the vocabulary page? I have the MingLiu (True Type) mingliu.ttf and MS Song (True Type) mssong.ttf installed in my C:\Windows\fonts directory - and IE8 used to display, but now neither displays. I also have NJStar Communicator which works for input: 所以 我可以寫漢字﹐可是vocabulary page的 漢字看不見. Thanks in advance