I am running Zimbra Web Mail 7.2.3 under Internet Explorer 10 in Windows 7 64bit and can't create new e-mail messages or reply to received e-mails. I am only able to receive mail. When I attempt to create an e-mail by selecting "New+" nothing happens. The same happens when I reply.

When I perform these functions under Google Chrome, everything works fine. Is this a known issue? Is there a fix for enabling some sort of permissions under IE 10?