This does sound much like the issue having a pre-UR12 environment with IE10. The solution here was to add your domain to the list of sites running in compatibility view. So it might be worth your while to double check that (I did see you tried).
Are you Online or On Premise? If On Premise, updating to UR12 or 13 should resolve.
Support with Microsoft Dynamics CRM 2011 and Internet Explorer 10