There are some sites that seem to be missing some content that could be viewed on any other browser before. Lots of the problems involve sites that use Silverlight, I have received a Silverlight plugin notification at the bottom, which worked on some sites, but not all, and also anything dealing with JQuerry/Script when loading dynamic content involving forums or video surveillance over IP.
If compatibility mode is hidden, will activating it fix these issues or are these issues caused by the revamped plugin system that IE 11 has implemented?
Here's an example. We have a guild site with the address of gotor.guildportal.com - The home page has a guild wall that automatically updates as soon as someone posts something. This widget worked in IE 10 and it did not require compatibility mode. It requires scripts in order to function correctly. Now in IE 11, when viewing it, all the posts do not show up, you cannot type anything in it, none of the buttons function other than what CSS intended them to do.