I can't open zoho sheet

I can't open zoho sheet

Hello,

I can't open zoho sheet, in fact, i have only the logo "zoho sheet" in the top-left corner but nothing else ...
(on XP => Firefox 3.6.8, Chrome 5.0.375.127 and IE 6)

I tried to search in this forum, but i didn't find any problem like this.

Can you help me please,

Thank you.

mazelerat_steven

ps: zoho calendar works well