It works perfectly with Firefox, Chrome or Opera, even with an old version of IE (6 I think)

With Internet Explorer 10, I can access to Zoho Invoice, Project, Writer or Creator but not CRM

Same problem with 3 different computers

Unfortunately I must use Internet Explorer 

Do you have a problem of compatibility or security with IE, or is there a specific security parameter to set ?

If a compatibility problem, can you fix it ?