I for some reason am calling a doctype preferably XHTML 1.0 Transitional, and for some reason every single time I open it in Internet Explorer I get...
Browser Mode: IE9
By default, IE will render in compatibility mode for websites on the same subnet as the client. You can fix this by either turning off this feature in IE by going to Tools->Compatibility View Settings and unchecking Display Intranet sites in compatibility mode, or by including the meta tag that Sologoub mentioned.