While researching on your issue, I found blog social.microsoft.com/.../crm-2011-online-issues-with-internet-explorer-10, not sure if you have posted it before also as it looks pretty much similar. But if you haven't posted question in above blog then I would suggest you go thru social.microsoft.com/.../crm-2011-online-issues-with-internet-explorer-10 to find the resolution for the issue.
Regards,
Satish T