Cannot access my saved ZOHO spreadsheets

Cannot access my saved ZOHO spreadsheets

ZOHO Sheet Moderator,

For the last several days I have been unable to access my ZOHO sheets. My browser (IE7) tries to load "http://sheet.zoho.com/home.do" for several minutes and then times out with a "Internet Explorer cannot display the webpage" message. All my other ZOHO Services (Writer, Creator, WIKI) seem to be working OK.